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Calculator 的开发历史

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Version: 0.550 Date: 11/04/2023 Fix bug in function diff(polyn). Update the function solve() and make it to solve equation like ax^2+bx+c==0. Try `solve(x^2+7x+8==0)` or `solve(x^2==-7x-8)` We add the two functions solve() and eq24() to the basic version. And we rename Calculator to Sowya. But we will still use calculator for the name of the class inside this project. Date April 11, 2023

Version	Date	Description
0.441	24/11/2018	exp(x)
0.442--0.443	04/01/2019	log(x), ln(x), and fixed some bugs, such as operator==, Now we can compare .9==0.9 and so on.
0.444	04/01/2019	Variables can be defined. fix_variables(1) a="1+2/3" a=2+3*9 :clear
0.445	08/03/2019	Add two functions: binary2decimal() decimal2binary()
0.446	17/03/2019	Add extra file in project, functions.h: which contains self defined functions. Fixed function sqrtn()
0.447	21/03/2019	:change the function declaration IntDivision(string &, string &) to IntDivision(const string &, const string &) And change power operation to fast algorithm.
0.448	01/04/2019	:Improved the function plus(), and add char ( in operators[], so can deal with expression a+bc+(de+f)*g if a,b,...,g are defined.
0.449	01/04/2019	:Add function: solve(equation,x,minValue,maxValue).
0.450	06/06/2019	exp(x) fixed bug in computation IntDivision, that is: num1 % num2 add following functions: decimal2octal(n) decimal2hex(n) firstFactor(n) factorise(n)
0.451	27/07/2019	fixed bug of internal function ChangeInfix() add function decimal2fraction(n) add internal function isInteger(n) add internal isPositiveInteger(n) add internal isNegativeInteger(n) add function !n=1!+2!+...+n!
0.452	27/08/2019	add function eq24(a,b,c,d)
0.453	06/09/2019	10%+10% 5%%3
0.454	19/09/2019	add function Collatz() and print3x1maps(a,b)
0.455	21/09/2019	add Lucas-Lehmer test for Mersenne primes in function isprime() For example: isprime(2^89-1)
0.456	11/10/2019	Fixed some BUGs founded on 09-10-2019 For the previous versions, if you input the following : >> p=3511 >> 2^(p-1)-1mod(p^2) You will get 2^(3511-1)-1@(3511^2 That is, the last char ) is lost.
0.457	23/11/2019	Add function sum(general_term,n,min,max) on 09-10-2019
0.458	01/12/2019	Using hash function to deal with functions, add several functions, such as listfunctions(), help(funcName) and etc. on 01-12-2019
0.459	15/12/2019	Fix bug: -(-2) and -3^2 and etc. on 15-12-2019
0.460	24/01/2020	Fix bug: a=3 a==3 and etc. on 24-01-2020 Set values: a=3 b=a and etc. on 24-01-2020
0.461	Date: 21/02/2019	Fix bug: binom(5,5)=∞ on 21-02-2020
0.462	05/03/2020	Add exmpo() in function list. on 05-03-2020
0.463	11/03/2020	Fix BUG: sum(i!,i,1,20) on 11-03-2020
0.464	11/03/2020	Fix BUG: sqrt(x) does not work when x is not an integer on 24-03-2020
0.465	02/04/2020	Set default precision to 8, and make some functions do quick calculation when precision is high. Date April 2, 2020
0.466	14/04/2020	Add funtion getprecision() and fix bug of function setprecision() when no parameter is given. Date April 14, 2020
0.467	16/04/2020	Modify the command class so that print the functions list ordered by name. Date April 16, 2020
0.468	29/04/2020	Add command :mode, and enable do fraction calculation. Date April 29, 2020
0.469	08/07/2020	Make it possible to do the fraction calculation. Date July 08, 2020
0.470	10/07/2020	Make function sum() work under the fraction calculation mode. Date July 10, 2020
0.471	22/07/2020	Compare fractions. (Comparer les fractions.) And we make the computing x! possible. For example, 3.4!=3.42.41.4. Date July 22, 2020
0.472	25/07/2020	Fix a bug, the result of x mod 1 should be zero. And add function continued_fraction(num,expression,detail,tex). Date July 25, 2020
0.473	28/07/2020	Still use function continued_fraction() to compute continued fraction. e.g., continued_fraction(3,5,1,1,2). Date July 25, 2020
0.474	01/08/2020	Add function Farey(n) to generate Farey series. Date August 01, 2020
0.475*	09/08/2020	Version 0.475 is the first version for register user. Date August 09, 2020
0.476	29/08/2020	Allow function sqrt() accept negative number. Date August 29, 2020
0.477	30/08/2020	Let function pi() return pi and pi(x) return the number of primes which is not greater than x. And add function list_pi_x(A,B) to print pi(x), where x is in [A,B]. Date August 30, 2020
0.478	01/09/2020	Fix bug in function q_DuanwuPlus(). Add function reverse() and reverse_plus(). If input `_` , then it will return the previous result. Date September 01, 2020
0.479	02/09/2020	Set system variables. Date September 02, 2020
0.480	06/09/2020	Permet au système d'effecteur des opérations symboliques. Date September 06, 2020
0.481	09/09/2020	Fix bugs in the symbolic operations such as +,-,*,/. Date September 06, 2020
0.482	22/10/2020	Change the infinity symbol ∞ to string `Inf` to avoid the error during arithmetic computation. Improved the operations including pre_power and etc. Date October 22, 2020
0.483	11/11/2020	Improved function eq24() such that it works under fraction mode. And improved the function fr_multiplication() and inputcmd2expression(). Date November 11, 2020
0.484	24/11/2020	Add functions: Primes(n), p(n) and index_of_prime(n). Date November 24, 2020
0.485	10/12/2020	Improved Factorise() and the calculation of n!. Try 10000! or Factorise(10000!). Date December 10, 2020
0.486	18/12/2020	Fix bug in function Factorise(). Date December 18, 2020
0.487	24/12/2020	Fix greate bugs in symbol calculations. Date December 24, 2020
0.488	26/12/2020	Fix bugs in symbol calculations. Date December 26, 2020
0.489	27/12/2020	Fix bugs in symbol calculations. Date December 27, 2020
0.490	28/12/2020	Such expressions (x-1)(x+2) are allowed. Date December 28, 2020
0.491	14/03/2021	Add function Fibonacci(). Date March 14, 2021
0.492	21/03/2021	Improve the functions gcd() and lcm() and let them support multiparameters. Fix bugs in functions help() and Factorise(). Date March 21, 2021
0.493	22/03/2021	Fix bugs in functions log() or ln(). Date March 22, 2021
0.494--0.499	12/04/2021	Improve functionality of Calculator. Date April 12, 2021
0.494	11/05/2021	Improved the algorithm of computing !n Date May 11, 2021
0.495	23/06/2021	Add Mobius function: mobius(x). Date June 23, 2021
0.496	06/09/2021	Add function: printSeries(1/n,n,1,10). Date September 6, 2021
0.497	12/10/2021	Add function: hex2decimal(0xABCDEF123456). octal2decimal(01234567). any2decimal(num,p) Date October 12, 2021
0.498	28/11/2021	Add function: goldbach(n). Verify the Goldbach conjecture. Date November 28, 2021
0.499	03/12/2021	Improved function: goldbach(n). Date December 03, 2021
0.500	14/03/2022	Add function subset(N,m) on Pi Day. Date March 14, 2022
0.501	06/07/2022	For convenience, we change the name of functions expmo() to expmod(). Date June 13, 2022 Fix function exp(x), here x may be negative. Date July 4, 2022 Add function decimal2any(N, base). We also add functions for p-adic numbers, such that ord_p() and norm_p(). Date July 6, 2022
0.502	21/07/2022	Change if else statements to a switch statement for string. Date July 21, 2022
0.503	24/07/2022	Matrix definition, A=[1,2,3;4,5,6;7,8,9]. Date July 24, 2022
0.504	25/07/2022	Fix some bugs. Date July 25, 2022
0.505	28/07/2022	Add function EulerBrackets() 欧拉括号, qid=2965. Date July 28, 2022
0.506	05/08/2022	Fix some bugs of inputting matrix. Date August 5, 2022
0.507	07/08/2022	Add function Factorial(n), return the standard decomposition of n!. Date August 7, 2022
0.508	10/08/2022	Add function IndefiniteEquation(a,b), solve the indefinite equation ax+by=1. Date August 10, 2022
0.509	11/08/2022	Fix bugs of IndefiniteEquation(a,b). Date August 11, 2022
0.510	20/08/2022	We change the interface of the CalculatorApp by Using UPP's Docking technology. And we start to write the manual of Calculator. Date August 20, 2022
0.511	22/08/2022	Fix bug of fraction operation described in qid=2973. Date August 22, 2022
0.512	24/08/2022	Update the manual of Calculator and add download link to update Calculator. Date August 24, 2022
0.513	28/08/2022	Update the manual of Calculator and fix some bugs. Date August 24, 2022
0.514	29/08/2022	Add dialog for register and add the backup serialization data as used in the DockingExample2 in U++ reference. Date August 24, 2022
0.515	01/09/2022	Add two functions disp() and det(). Date September 1, 2022
0.516	02/09/2022	Fix bugs. Date September 2, 2022
0.517	04/09/2022	Add function solve_n3plus_until_m3_eq_p3(n,m) to find the solutions of the equation: n^3+(n+1)^3+...+M^3=q^3. Date September 4, 2022
0.518	05/09/2022	Improve matrix input rules, see qid=2978. Date September 5, 2022
0.519	09/09/2022	Fix mod function, we allow negative numbers. For example, -680mod47. Date September 9, 2022
0.519	10/09/2022	中秋快乐! September 10, 2022
0.520	11/09/2022	Fix the bug described in qid=2928, about the precedence of operators Try (21+1)1!2^(21) and 9!3!. Here 9!3! means 9!(3!). Date September 11, 2022
0.521	13/09/2022	Solve the indefinite equation like 25x-13y+7z=4. Try input `IndefiniteEquation(25,-13,7;4)`. Date September 13, 2022
0.522	18/09/2022	Solve the indefinite equations like x+2y+3z=4 and 7x1+4x2-2x3+3x4=2. Try input `IndefiniteEquation(1,2,3;4)` or `IndefiniteEquation(7,4,-2,3;2)`. Date September 18, 2022
0.523	30/09/2022	Input matrix with elements in the form of expression. Try input `[2^2-1,6+5*3,7-1/4;1/3,-1+2/3,0;1-3^2,-2,7+9/7]`. Date September 30, 2022
0.524	03/10/2022	Add function EulerVarphi(n), which return the amount of numbers that less than n and coprime to n. Date October 03, 2022
0.525	16/11/2022	Make the function binom() support simple symbolic operations. For example, binom(n,k) will return (n)!/((k)!*(n-k)!). Date November 16, 2022
0.526	07/12/2022	Fix bug of IndefiniteEquation() For the case IndefiniteEquation(a,b;c), it will use the same algorithm of IndefiniteEquation(a,b). Date November 16, 2022
0.527	09/12/2022	Add a parameter in function sum(). Try sum(n^2,n,1,100) and sum(n^2,n,1,100,expand). The last parameter `expand` will print the expression. Date December 09, 2022
0.528	16/12/2022	Add the operations of polynomials, such as addition, subtraction and multiplication. First we switch to polynomial mode by typing `:mode=polyn`, then type `(-4x^3+x^2)+(3x-x^6)*2x` and push Enter key. Here we only deal with polynomial of variable x. Date December 16, 2022
0.529	17/12/2022	Simplify the output of the result polynomial. Delete the zero terms(for example, 0x^2) in the polynomial. `(x+1)*(x^2-x+1)` will return 1x^3+1x^0. Date December 17, 2022
0.530	01/01/2023	Add division of polynomials. For example `(x^3+x+1)/(x+1)` will return quotient: x^2-1x^1+2 remainder: -1. Date January 01, 2023
0.531	03/01/2023	Add the power of the polynomial. Try `(x^2+2)^3`. Date January 03, 2023
0.532	12/01/2023	Make handling large number coefficients of polynomial possible. Try `(x^2+2)^100`. Date January 12, 2023
0.533	27/01/2023	Fix bug[qid=3056] of polynomial calculation. The coefficients are calculated by using fractions. Try `(x^4+3x^3-x^2-4x-3)/(3x^3+10x^2+2x-3)`. Date January 27, 2023
0.534	30/01/2023	The function isprime(n) allows negative numbers as arguments. Try `isprime(-1291)` Improve the algorithm of function solve_n3plus_until_m3_eq_p3(). Try `solve_n3plus_until_m3_eq_p3(10,100)` Date January 30, 2023
0.535	31/01/2023	Add function Legendre(a,p) to calculate the value of Legendre symbol (a\|p), where a is coprime with p and p is a prime number. Try `Legendre(438,593)` Date January 31, 2023
0.536	02/02/2023	Add function Jacobi(a,p) to calculate the value of Jacobi symbol (a\|p), where a is coprime with p and p is an odd number. Try `Jacobi(438,593)` or `Jacobi(438,593,show)` Date February 2nd, 2023
0.537	04/02/2023	Add function printRecursiveSeries(Iteration_expression, x, initialValue, N, delimiter). Try `printRecursiveSeries(x/2,x,2,10, )` `printRecursiveSeries((4n-2)h_n,h_n,1,10, )` Date February 4th, 2023
0.538	10/02/2023	Fix bug of function IndefiniteEquation(). Try `IndefiniteEquation(51,24;906)` Fix bugs in polynomial operations. Add function simplify(polynomial). Try `simplify(x+2-3x+x^2-3x^2)`. Date February 10, 2023
0.539	11/02/2023	Fix bugs in polynomial operations. Add operations (poly1)%(poly2), (poly1)mod(poly2) and (poly1)==(poly2). Make sure add to enclose parentheses around polynomials. Try `(x^2000)%(x^4+x^3+2x^2+x+1)`, `(x^2000)mod(x^4+x^3+2x^2+x+1)`, `(x+x^2-3)==(-3+x^2+x)`. Add function `deg()` to get the degree of polynomial. Try `deg(x^2-x^3+7-x^9)`. Date February 11, 2023
0.540	13/02/2023	Make the function decimal2binary() and binary2decimal() able to handle decimals. Try `setprecision(100)` `decimal2binary(2023.0213)`. Date February 13, 2023
0.541	16/02/2023	Fix bug of function printRecursiveSeries() and improve it. Try `printRecursiveSeries((a_n+n+1)/(1+a_n(n+1)),a_n,2,10,\n,linenumber)` `printRecursiveSeries(a_{n+1}==(a_n+n+1)/(1+a_n(n+1)),a_3=2,10,\n,linenumber)`. Date February 16, 2023
0.542	24/02/2023	Fix bug of function printRecursiveSeries(). Try `printRecursiveSeries(-5*I_k+1/(k+1),I_k,0.08,10,\n,linenumber)`. Date February 24, 2023
0.543	16/03/2023	Implement batching, i.e. read a file and execute the statements in it sequentially. First write some expressions or functions in a text file, named for example test.sy, with content below. a=2 a+38 :mode=polyn (-4x^3+x^2)+(3x-x^6)2x :mode=numerical A=[1,2; 3,-2] B=[1 2 3 4;3,2,0 1;0,2,0,9;1,3,5, -1] EulerVarphi(20230316) hex2decimal(0x134b0ac) Save it and run the command: calculator.exe test.sy We also can specify the output file by using the following way. calculator -f test.sy -o output.txt Date March 16, 2023
0.544	24/03/2023	Add function Factorise_analysis(n) to decompose a positive integer into the product of two types of prime numbers. One type is equal to 1(mod 4), another is equal to 3(mod 4). And compute some functions such as delta(n), epsilon(n) and xi(n). Try Factorise_analysis((3 * 24 * 2023) ^ 2) Change the internal logic of the mode. Try `:mode help` . Date March 24, 2023
0.545	25/03/2023	Add function Gcd(poly1, poly2) to compute the greatest common divsor(factor) of polynomials. Try `Gcd(x^4+3x^3-x^2-4x-3,3x^3+10x^2+2x-3)` `Gcd2(x^4+3x^3-x^2-4x-3,3x^3+10x^2+2x-3)` Add function monic_polyn() to transfer a polynomial to monic polynomial. `Try monic_polyn(3x^2+6x-9x+2)`. Date March 25, 2023
0.546	01/04/2023	Fix errors of function Gcd() and Gcd2(). Add the function diff() to differentiate polynomial function. Try `diff(x^4+3x^3-x^2-9x+7)`. Date April 01, 2023
0.547	02/04/2023	We modified the sqrt() function so that it returns results of the form m*sqrt(n) in fractional calculation mode. Try `:mode fraction sqrt(972)`. Date April 01, 2023
0.548	06/04/2023	Improved the algorithm used by function listpseudoprimes(n). Now it runs fast. Date April 06, 2023
0.549	09/04/2023	Fix bug in function printRecursiveSeries(). And we can type `:help funcName` or `:h funcName` to display the introduction of the function, just like input `help(funcName)`. Date April 09, 2023
0.550	11/04/2023	Fix bug in function diff(polyn). Update the function solve() and make it to solve equation like ax^2+bx+c==0. Try `solve(x^2+7x+8==0)` or `solve(x^2==-7x-8)` We add the two functions solve() and eq24() to the basic version. And we rename Calculator to Sowya. But we will still use calculator for the name of the class inside this project. Date April 11, 2023
0.551	19/04/2023	Make the function sqrtn() deal with the fraction. For example, Try `sqrtn(64/27,3)`. And fix bug in function sqrt(). We also make the function solve() can solve the equation like ax^3+bx^2+cx+d==0. Try `solve(x^3-3x^2+2x^1==0)` Date April 19, 2023
0.552	01/05/2023	Fix bug of sum() function under fraction mode, Try `:mode fraction` `sum(1/8*((i-1)/8)^2,i,1,8)`. Date May 01, 2023
0.553	02/05/2023	Add the function of complex number operations. Try `:mode complex` `(1+2i)+(3-4i)` `(1+2i)-(3-4i)` `(1+2i)*(3-4i)` `(1+2i)/(3-4i)` Date May 02, 2023
0.554	07/05/2023	Add function inv(A) to compute the inverse matrix of A. Try `A=[1,2,3;4,5,6;7,8,0]` `inv(A)` `:mode fraction` `inv(A)` Date May 07, 2023
0.555	04/06/2023	By using clox (http://www.craftinginterpreters.com/), we make programing in Sowya possible. Try `:mode clox` `fun echo(){var n=900000000000000000; while(n<900000000000000009){print n*n;n=n+1;}}` `echo();` `:q` Date June 04, 2023
0.556	08/06/2023	In mode clox, we can input multiple lines. Try >>:mode clox >{ fun echo(){ var n=9; while(n<20){ print 2^n; n=n+1; } } } >echo(); >:q >> Date June 08, 2023
0.557	11/06/2023	In mode clox, we add native function length() to return the length of string and function ith_char(s,i) to return the i-th char of string s. Try >>:mode clox var x="Hello Sowya!"; print length(x); print ith_char(x,6); Date June 11, 2023
0.558	14/06/2023	In mode clox, we add native function avg() to calculate the average value of several numbers. Try >>:mode clox print avg(12,3,4,5,98); var x=12; var y=29;print avg(x,y); And we also add load file function. Suppose we write a function named avg(a,b) in the file avg.sy in the folder code. Then try >>:mode clox load(code\avg.sy) print avg(2,3); Date June 14, 2023
0.559	17/06/2023	In mode clox, we add native functions setprecision() and setmode(). Try >>:mode clox print 1/2+1/3; setprecision(20); print 1/2+1/3; setmode(1); print 1/2+1/3; Date June 17, 2023
0.560	21/06/2023	In mode clox, we improved the print function. It will print newline when `\n` accurred. Try >>:mode clox print 1/2+1/3; print "\n"; var a=2; var b=3; var c=ab; print a,"\n", b,"\n",c,"\n"; Also, we improved the variable declaration. Now we can define multiple variables in one line. Try var a=2, b=3, c=ab; Date June 21, 2023
0.561	04/07/2023	In mode clox, we fix a bug that we can not run the native function avg. The reason is that we forget claim the global variable pA in class Calculator. Date July 04, 2023
0.562	08/07/2023	A bug is fixed. Try :mode fraction printSeries((-1)^n1/(2n+1),n,0,10) (1/5+1/3)^(-2) (-1/3)^(3/2) Date July 08, 2023
0.563	24/07/2023	Several functions are opened in the basic version. See which functions are available, listfunctions() Add operations for the matrix elementary transformations. Try A=[1 2 3;4 5 6;7 8 0] transform(A, r2-r14) transform(A, r3-r17) transform(A, c1<-->c3) :mode fraction transform(A, c2*(-1/3)) Date July 24, 2023
0.564	25/07/2023	Make elementary transformation available for matrix with x. Try A=[5x,1,2,3;x,x,1,2;1,2,x,3;x,1,2,2x] transform(A,r1<-->r3) transform(A, r2-r1x) transform(A, r3-r15x) transform(A, r4-r1x)transform(A, r2(-1)) transform(A, r3(-1)) transform(A, r4(-1)) transform(A, r3-r210) transform(A, r4-r22) transform(A, r2+r3*x) transform(A, r3-r4) Date July 25, 2023
0.565	30/07/2023	Fix bug in multiplication for fraction. Try A=[0,a,2,1;-a,0,d,3;-2,-d,0,1;-1,-3,-1,0] det(A) Date July 30, 2023
0.566	31/07/2023	Add function transpose() to return the transpose matrix of the given matrix. For the above matrix A, Try transpose(A) Date July 31, 2023
0.567	02/08/2023	Addition, subtraction and multiplication of matrices are implemented. Try A=[1 2;3 4] B=[-2 0;0 3] A+B A-B AB A^2 A+BA Date August 02, 2023
0.568	04/08/2023	Use unordered_map<> to store the variables. Date August 04, 2023
0.569	05/08/2023	Fix a bug. In polyn mode, `xxx-3x*x+2x-5` will be transformed into `x^3-3x^2+2x-5`. Try it. Date August 05, 2023
0.570	07/08/2023	Add two functions CofactorMatrix(A,i,j) and DetExpansion(A,r2). The first returns the (i,j)-th element of matrix A. The second will expand matrix A along ri(row i) or cj(column j). Try A=[1,0,-2;1,1,3;-2,3,1] CofactorMatrix(A,2,3) DetExpansion(A,r1) DetExpansion(A,c2) Date August 07, 2023
0.571	10/08/2023	Add E() function to generate elementary matrix. E(n,i,j(k)) will generate the elmentary matrix E(i,j(k)) of order n. And E(n,i(k)) will generate the elementary matrix E(i(k)) of order n. Try E(4,2,3(5)) E(5,3(2)) :list Date August 10, 2023
0.572	19/08/2023	Add rank() function to calculate the rank of matrix. Try A=[1 3 6;1 2 3;1 4 9] rank(A) rank(A,hint) Date August 19, 2023
0.573	25/08/2023	Fix a bug in rank() function. To return the rank of matrix A, simply input rank(A). If we want to calculator the row rank of A, then input rank(A,row), which will use elementary row transformation of A to calculate the rank. Of course, you can input rank(A,col) to return the column rank of A. While rank(A,hint) also return the rank of A, it will use elementary row transformation when the rows of A is less or equal than the columns of A, and use the elementary column transformation when the rows of A is greater than the columns of A. Date August 25, 2023
0.574	29/08/2023	We extend functionality to function eq24(). Also we add aliases `s24()` and `suo()`. Try eq24(8,6,4,4) s24(11,10,5,1;24) suo(8,6,6,4;28) Date August 29, 2023
0.575	01/09/2023	We extend functionality to function solve() to solve linear equations. Try A=[1,1,-3,-1;3,-1,-3,4;1,5,-9,-8] b=[1;4;0] solve(A*x==b) Date September 01, 2023
0.576	02/09/2023	Try A=[1,1,-3,-1;3,-1,-3,4;1,5,-9,-8] b=[1;4;0] solve(Ax==b,normal) solve(Ax==b,hint) solve(A*x==b,normal,hint) Date September 02, 2023
0.577	09/10/2023	We add the ispolyn() function to check if the input string is a polynomial of x. Try ispolyn(3*(9+2)x^3) Date October 09, 2023
0.578	21/10/2023	Adapt to SciTE so that .sy , .sc files can be run in SciTE. where .sy is a sowya file, which can be executed line by line by sowya.exe; And .sc is a sowya clox programming file and can be executed by sowya.exe. Date October 21, 2023
0.579	26/10/2023	When switching to clox mode, Sowya will automatically load the files in the `ext` directory. If this directory does not exist, it will create it. Now we can put the code of the custom function into the `ext` directory to enhance the functionality of Sowya. Date October 26, 2023
0.580	14/12/2023	We add plugin system. list_plugins() -- 列出所有插件的名称 load_plugin(Pi) -- 加载名为Pi的插件 free_plugin(Pi) -- 卸载名为Pi的插件 For example, when we load Pi plugin, we can type `Pi->print()` to print 15,000 decimal digits of Pi. The plugin file is .dll file which is located in plugins or myplugins directory. Date December 14, 2023
0.581	21/12/2023	Add sine function. Try: sin(1) sin(1.2) Date December 21, 2023
0.582	25/12/2023	Add functionality to the sine function. Try: sin(1.5pi) sin(2/3pi) Date December 25, 2023
0.583	29/12/2023	Add function deg2rad(). Try: deg2rad(15) Date December 29, 2023

测试

History

>> :dev_history
Version: 0.441
Date: 24/11/2018
        exp(x)

Version: 0.442--0.443
Date: 04/01/2019
        log(x), ln(x), and fixed some bugs, such as operator==,
Now we can compare .9==0.9 and so on.

Version: 0.444
Date: 04/01/2019
        Variables can be defined.
        fix_variables(1)
        a="1+2/3"
        a=2+3*9
        :clear

Version: 0.445
Date: 08/03/2019
        Add two functions:
        binary2decimal()
        decimal2binary()

Version: 0.446
Date: 17/03/2019
        Add extra file in project, functions.h:
        which contains self defined functions.
        Fixed function sqrtn()

Version: 0.447
Date: 21/03/2019
        :change the function declaration IntDivision(string &, string &) to IntDivision(const string &, const string &)
        And change power operation to fast algorithm.

Version: 0.448
Date: 01/04/2019
        :Improved the function plus(), and add char ( in operators[], so can deal with expression a+b*c+(d*e+f)*g if a,b,...,g are defined.

Version: 0.449
Date: 01/04/2019
        :Add function: solve(equation,x,minValue,maxValue).

Version: 0.450
Date: 06/06/2019
        exp(x)

fixed bug in computation IntDivision, that is: num1 % num2
add function decimal2octal(n)

add function decimal2hex(n)

add function firstFactor(n)

add function factorise(n)

Version: 0.451
Date: 27/07/2019
fixed bug of internal function ChangeInfix()
add function decimal2fraction(n)

add internal function isInteger(n)

add internal isPositiveInteger(n)

add internal isNegativeInteger(n)

add function !n=1!+2!+...+n!

Version: 0.452
Date: 27/08/2019
add function eq24(a,b,c,d)

Version: 0.453
Date: 06/09/2019
10%+10%
5%%3

Version: 0.454
Date: 19/09/2019
add function Collatz() and print3x1maps(a,b)

Version: 0.455
Date: 21/09/2019
add Lucas-Lehmer test for Mersenne primes in function isprime()
For example: isprime(2^89-1)

Version: 0.456
Date: 11/10/2019
Fixed some BUGs founded on 09-10-2019
For the previous versions, if you input the following :
>> p=3511
>> 2^(p-1)-1mod(p^2)

You will get 2^(3511-1)-1@(3511^2
That is, the last char ) is lost.

Version: 0.457
Date: 23/11/2019
Add function sum(general_term,n,min,max) on 09-10-2019

Version: 0.458
Date: 01/12/2019
Using hash function to deal with functions, add several functions, such as listfunctions(), help(funcName) and etc. on 01-12-2019

Version: 0.459
Date: 15/12/2019
Fix bug: -(-2) and -3^2 and etc. on 15-12-2019

Version: 0.460
Date: 24/01/2020
Fix bug: a=3
 a==3
 and etc. on 24-01-2020

Set values: a=3
 b=a
 and etc. on 24-01-2020

Version: 0.461
Date: 21/02/2019
Fix bug: binom(5,5)=∞ on 21-02-2020

Version: 0.462
Date: 05/03/2020
Add exmpo() in function list. on 05-03-2020

Version: 0.463
Date: 11/03/2020
Fix BUG: sum(i!,i,1,20) on 11-03-2020

Version: 0.464
Date: 11/03/2020
Fix BUG: sqrt(x) does not work when x is not an integer on 24-03-2020

Version: 0.465
Date: 02/04/2020
Set default precision to 8, and make some functions do quick calculation when precision is high. Date April 2, 2020

Version: 0.466
Date: 14/04/2020
Add funtion getprecision() and fix bug of function setprecision() when no parameter is given. Date April 14, 2020

Version: 0.467
Date: 16/04/2020
Modify the command class so that print the functions list ordered by name. Date April 16, 2020

Version: 0.468
Date: 29/04/2020
Add command :mode, and enable do fraction calculation. Date April 29, 2020

Version: 0.469
Date: 08/07/2020
Make it possible to do the fraction calculation. Date July 08, 2020

Version: 0.470
Date: 10/07/2020
Make function sum() work under the fraction calculation mode. Date July 10, 2020

Version: 0.471
Date: 22/07/2020
Compare fractions. (Comparer les fractions.) And we make the computing x! possible. For example, 3.4!=3.4*2.4*1.4. Date July 22, 2020

Version: 0.472
Date: 25/07/2020
Fix a bug, the result of  x mod 1 should be zero.
And add function continued_fraction(num,expression,detail,tex). Date July 25, 2020

Version: 0.473
Date: 28/07/2020
Still use function continued_fraction() to compute continued fraction.
e.g., continued_fraction(3,5,1,1,2). Date July 25, 2020

Version: 0.474
Date: 01/08/2020
Add function Farey(n) to generate Farey series. Date August 01, 2020

===================

>> Version: 0.475
Date: 09/08/2020
Version 0.475 is the first version for register user. Date August 09, 2020

Version: 0.476
Date: 29/08/2020
Allow function sqrt() accept negative number. Date August 29, 2020

Version: 0.477
Date: 30/08/2020
Let function pi() return pi and pi(x) return the number of primes which is not greater than x. And add function list_pi_x(A,B) to print pi(x), where x is in [A,B]. Date August 30, 2020

Version: 0.478
Date: 01/09/2020
Fix bug in function q_DuanwuPlus(). Add function reverse() and reverse_plus(). If input `_` , then it will return the previous result. Date September 01, 2020

Version: 0.479
Date: 02/09/2020
Set system variables. Date September 02, 2020

Version: 0.480
Date: 06/09/2020
Permet au système d'effecteur des opérations symboliques. Date September 06, 2020

Version: 0.481
Date: 09/09/2020
Fix bugs in the symbolic operations such as +,-,*,/. Date September 06, 2020

Version: 0.482
Date: 22/10/2020
Change the infinity symbol ∞ to string `Inf` to avoid the error during arithmetic computation. Improved the operations including pre_power and etc. Date October 22, 2020

Version: 0.483
Date: 11/11/2020
Improved function eq24() such that it works under fraction mode. And improved the function fr_multiplication() and inputcmd2expression(). Date November 11, 2020

Version: 0.484
Date: 24/11/2020
Add functions: Primes(n), p(n) and index_of_prime(n). Date November 24, 2020

Version: 0.485
Date: 10/12/2020
Improved Factorise() and the calculation of n!. Try 10000! or  Factorise(10000!). Date December 10, 2020

Version: 0.486
Date: 18/12/2020
Fix bug in function Factorise(). Date December 18, 2020

Version: 0.487
Date: 24/12/2020
Fix greate bugs in symbol calculations. Date December 24, 2020

Version: 0.488
Date: 26/12/2020
Fix bugs in symbol calculations. Date December 26, 2020

Version: 0.489
Date: 27/12/2020
Fix bugs in symbol calculations. Date December 27, 2020

Version: 0.490
Date: 28/12/2020
Such expressions (x-1)(x+2) are allowed. Date December 28, 2020

Version: 0.491
Date: 14/03/2021
Add function Fibonacci(). Date March 14, 2021

Version: 0.492
Date: 21/03/2021
Improve the functions gcd() and lcm() and let them support multiparameters.
Fix bugs in functions help() and Factorise().
Date March 21, 2021

Version: 0.493
Date: 22/03/2021
Fix bugs in functions log() or ln().
Date March 22, 2021

Version: 0.494--0.499
Date: 12/04/2021
Improve functionality of Calculator.
Date April 12, 2021

Version: 0.494
Date: 11/05/2021
Improved the algorithm of computing !n
Date May 11, 2021

Version: 0.495
Date: 23/06/2021
Add Mobius function: mobius(x).
Date June 23, 2021

Version: 0.496
Date: 06/09/2021
Add function: printSeries(1/n,n,1,10).
Date September 6, 2021

Version: 0.497
Date: 12/10/2021
Add function: hex2decimal(0xABCDEF123456).
              octal2decimal(01234567).
              any2decimal(num,p)
Date October 12, 2021

Version: 0.498
Date: 28/11/2021
Add function: goldbach(n). Verify the Goldbach conjecture.
Date November 28, 2021

Version: 0.499
Date: 03/12/2021
Improved function: goldbach(n).
Date December 03, 2021

Version: 0.500
Date: 14/03/2022
Add function subset(N,m) on Pi Day.
Date March 14, 2022

Version: 0.501
Date: 06/07/2022
For convenience, we change the name of functions expmo() to expmod().
Date June 13, 2022
Fix function exp(x), here x may be negative.
Date July 4, 2022
Add function decimal2any(N, base). We also add functions for p-adic numbers, such that ord_p() and norm_p().
Date July 6, 2022

Version: 0.502
Date: 21/07/2022
Change if else statements to a switch statement for string.
Date July 21, 2022

Version: 0.503
Date: 24/07/2022
Matrix definition, A=[1,2,3;4,5,6;7,8,9].
Date July 24, 2022

Version: 0.504
Date: 25/07/2022
Fix some bugs.
Date July 25, 2022

Version: 0.505
Date: 28/07/2022
Add function EulerBrackets() 欧拉括号, qid=2965.
Date July 28, 2022

Version: 0.506
Date: 29/07/2022
Fix some bugs in matrix inputting.
Date July 29, 2022

Version: 0.507
Date: 07/08/2022
Add function Factorial(n), return the standard decomposition of n!.
Date August 7, 2022

Version: 0.508
Date: 10/08/2022
Add function IndefiniteEquation(a,b), solve the indefinite equation ax+by=1.
Date August 10, 2022

Version: 0.509
Date: 11/08/2022
Fix bugs of IndefiniteEquation(a,b).
Date August 11, 2022

Version: 0.510
Date: 20/08/2022
We change the interface of the CalculatorApp by Using UPP's Docking technology. And we start to write the manual of Calculator.
Date August 20, 2022

Version: 0.511
Date: 22/08/2022
Fix bug of fraction operation described in qid=2973.
Date August 22, 2022

Version: 0.512
Date: 24/08/2022
Update the manual of Calculator and add download link to update Calculator.
Date August 24, 2022

Version: 0.513
Date: 28/08/2022
Update the manual of Calculator and fix some bugs.
Date August 24, 2022

Version: 0.514
Date: 29/08/2022
Add dialog for register and add the backup serialization data as used in the DockingExample2 in U++ reference.
Date August 24, 2022

Version: 0.515
Date: 01/09/2022
Add two functions disp() and det().
Date September 1, 2022

Version: 0.516
Date: 02/09/2022
Fix bugs.
Date September 2, 2022

Version: 0.517
Date: 04/09/2022
Add function solve_n3plus_until_m3_eq_p3(n,m) to find the solutions of the equation:
n^3+(n+1)^3+...+M^3=q^3.
Date September 4, 2022

Version: 0.518
Date: 05/09/2022
Improve matrix input rules, see qid=2978.
Date September 5, 2022

Version: 0.519
Date: 09/09/2022
Fix mod function, we allow negative numbers. For example, -680mod47.
Date September 9, 2022

Version: 0.519
Date: 10/09/2022
中秋快乐!
September 10, 2022

Version: 0.520
Date: 11/09/2022
Fix the bug described in qid=2928, about the precedence of operators
Try (2*1+1)*1!*2^(2*1) and 9!3!.
Here 9!3! means 9!(3!).
Date September 11, 2022

Version: 0.521
Date: 13/09/2022
Solve the indefinite equation like 25x-13y+7z=4.
Try input `IndefiniteEquation(25,-13,7;4)`.
Date September 13, 2022

Version: 0.522
Date: 18/09/2022
Solve the indefinite equations like x+2y+3z=4 and 7x1+4x2-2x3+3x4=2.
Try input `IndefiniteEquation(1,2,3;4)` or `IndefiniteEquation(7,4,-2,3;2)`.
Date September 18, 2022

Version: 0.523
Date: 30/09/2022
Input matrix with elements in the form of expression.
Try input `[2^2-1,6+5*3,7-1/4;1/3,-1+2/3,0;1-3^2,-2,7+9/7]`.
Date September 30, 2022

Version: 0.524
Date: 03/10/2022
Add function EulerVarphi(n), which return the amount of numbers that less than n and coprime to n.
Date October 03, 2022

Version: 0.525
Date: 16/11/2022
Make the function binom() support simple symbolic operations.
For example, binom(n,k) will return (n)!/((k)!*(n-k)!).
Date November 16, 2022

Version: 0.526
Date: 07/12/2022
Fix bug of IndefiniteEquation()
For the case IndefiniteEquation(a,b;c), it will use the same algorithm of IndefiniteEquation(a,b).
Date November 16, 2022

Version: 0.527
Date: 09/12/2022
Add a parameter in function sum(). Try sum(n^2,n,1,100) and sum(n^2,n,1,100,expand). The last parameter `expand` will print the expression.
Date December 09, 2022

Version: 0.528
Date: 16/12/2022
Add the operations of polynomials, such as addition, subtraction and multiplication.
First we switch to polynomial mode by typing `:mode=polyn`, then type `(-4x^3+x^2)+(3x-x^6)*2x` and push Enter key.
Here we only deal with polynomial of variable x.
Date December 16, 2022

Version: 0.529
Date: 17/12/2022
Simplify the output of the result polynomial. Delete the zero terms(for example, 0x^2) in the polynomial.
 `(x+1)*(x^2-x+1)` will return 1x^3+1x^0.
Date December 17, 2022

Version: 0.530
Date: 01/01/2023
Add division of polynomials.
 For example `(x^3+x+1)/(x+1)` will return quotient: x^2-1x^1+2
remainder: -1.

Date January 01, 2023

Version: 0.531
Date: 03/01/2023
Add the power of the polynomial.
 Try `(x^2+2)^3`.

Date January 03, 2023

Version: 0.532
Date: 12/01/2023
Make handling large number coefficients of polynomial possible.
 Try `(x^2+2)^100`.

Date January 12, 2023

Version: 0.533
Date: 27/01/2023
Fix bug[qid=3056] of polynomial calculation. The coefficients are calculated by using fractions.
 Try `(x^4+3x^3-x^2-4x-3)/(3x^3+10x^2+2x-3)`.

Date January 27, 2023

Version: 0.534
Date: 30/01/2023
The function isprime(n) allows negative numbers as arguments.
Try `isprime(-1291)`

Improve the algorithm of function solve_n3plus_until_m3_eq_p3().
Try `solve_n3plus_until_m3_eq_p3(10,100)`

Date January 30, 2023

Version: 0.535
Date: 31/01/2023
Add function Legendre(a,p) to calculate the value of Legendre symbol (a|p), where a is coprime with p and p is a prime number.

Try `Legendre(438,593)`

Date January 31, 2023

Version: 0.536
Date: 02/02/2023
Add function Jacobi(a,p) to calculate the value of Jacobi symbol (a|p), where a is coprime with p and p is an odd number.

Try `Jacobi(438,593)` or `Jacobi(438,593,show)`

Date February 2nd, 2023

Version: 0.537
Date: 04/02/2023
Add function printRecursiveSeries(Iteration_expression, x, initialValue, N, delimiter).

Try `printRecursiveSeries(x/2,x,2,10,
)`
   `printRecursiveSeries((4*n-2)*h_n,h_n,1,10,
)`

Date February 4th, 2023

Version: 0.538
Date: 10/02/2023
Fix bug of function IndefiniteEquation().
Try `IndefiniteEquation(51,24;906)`

Fix bugs in polynomial operations. Add function simplify(polynomial).
Try `simplify(x+2-3x+x^2-3x^2)`.

Date February 10, 2023

Version: 0.539
Date: 11/02/2023
Fix bugs in polynomial operations. Add operations (poly1)%(poly2), (poly1)mod(poly2) and (poly1)==(poly2).
Make sure add to enclose parentheses around polynomials.

Try `(x^2000)%(x^4+x^3+2x^2+x+1)`,
`(x^2000)mod(x^4+x^3+2x^2+x+1)`,
`(x+x^2-3)==(-3+x^2+x)`.

Add function `deg()` to get the degree of polynomial.
Try `deg(x^2-x^3+7-x^9)`.

Date February 11, 2023

Version: 0.540
Date: 13/02/2023
Make the function decimal2binary() and binary2decimal() able to handle decimals.
Try     `setprecision(100)`
`decimal2binary(2023.0213)`.

Date February 13, 2023

Version: 0.541
Date: 16/02/2023
Fix bug of function printRecursiveSeries() and improve it.
Try     `printRecursiveSeries((a_n+n+1)/(1+a_n*(n+1)),a_n,2,10,\n,linenumber)`
`printRecursiveSeries(a_{n+1}==(a_n+n+1)/(1+a_n*(n+1)),a_3=2,10,\n,linenumber)`.

Date February 16, 2023

Version: 0.542
Date: 24/02/2023
Fix bug of function printRecursiveSeries().
Try     `printRecursiveSeries(-5*I_k+1/(k+1),I_k,0.08,10,\n,linenumber)`.

Date February 24, 2023

Version: 0.543
Date: 16/03/2023
Implement batching, i.e. read a file and execute the statements in it sequentially.
First write some expressions or functions in a text file, named for example test.sy, with content below.

a=2
a+3*8
:mode=polyn
(-4x^3+x^2)+(3x-x^6)*2x
:mode=numerical
A=[1,2;
3,-2]
B=[1 2 3
4;3,2,0
1;0,2,0,9;1,3,5,
-1]
EulerVarphi(20230316)
hex2decimal(0x134b0ac)

Save it and run the command:

calculator.exe test.sy

We also can specify the output file by using the following way.

calculator -f test.sy -o output.txt

Date March 16, 2023

Version: 0.544
Date: 24/03/2023
Add function Factorise_analysis(n) to decompose a positive integer into the product of two types of prime numbers. One type is equal to 1(mod 4), another is equal to 3(mod 4).
And compute some functions such as delta(n), epsilon(n) and xi(n).

Try Factorise_analysis((3 * 24 * 2023) ^ 2)
Change the internal logic of the mode.
Try `:mode help`        .

Date March 24, 2023

Version: 0.545
Date: 25/03/2023
Add function Gcd(poly1, poly2) to compute the greatest common divsor(factor) of polynomials.
Try `Gcd(x^4+3x^3-x^2-4x-3,3x^3+10x^2+2x-3)`

`Gcd2(x^4+3x^3-x^2-4x-3,3x^3+10x^2+2x-3)`

Add function monic_polyn() to transfer a polynomial to monic polynomial.

`Try monic_polyn(3x^2+6x-9x+2)`.

Date March 25, 2023

Version: 0.546
Date: 01/04/2023
Fix errors of function Gcd() and Gcd2(). Add the function diff() to differentiate polynomial function.

Try `diff(x^4+3x^3-x^2-9x+7)`.

Date April 01, 2023

Version: 0.547
Date: 02/04/2023
We modified the sqrt() function so that it returns results of the form m*sqrt(n) in fractional calculation mode.

Try `:mode fraction
        sqrt(972)`.

Date April 01, 2023

Version: 0.548
Date: 06/04/2023
Improved the algorithm used by function listpseudoprimes(n). Now it runs fast.

Date April 06, 2023

Version: 0.549
Date: 09/04/2023
Fix bug in function printRecursiveSeries(). And we can type `:help funcName` or `:h funcName` to display the introduction of the function, just like input `help(funcName)`.

Date April 09, 2023

Version: 0.550
Date: 11/04/2023
Fix bug in function diff(polyn). Update the function solve() and make it to solve equation like ax^2+bx+c==0.

Try `solve(x^2+7x+8==0)` or `solve(x^2==-7x-8)`

We add the two functions solve() and eq24() to the basic version. And we rename Calculator to Sowya. But we will still use calculator for the name of the class inside this project.

Date April 11, 2023

Version: 0.551
Date: 19/04/2023
Make the function sqrtn() deal with the fraction. For example, Try `sqrtn(64/27,3)`.
And fix bug in function sqrt().
We also make the function solve() can solve the equation like ax^3+bx^2+cx+d==0.

Try `solve(x^3-3x^2+2x^1==0)`

Date April 19, 2023

Version: 0.552
Date: 01/05/2023
Fix bug of sum() function under fraction mode, Try

`:mode fraction`
        `sum(1/8*((i-1)/8)^2,i,1,8)`.

Date May 01, 2023

Version: 0.553
Date: 02/05/2023
Add the function of complex number operations. Try

`:mode complex`
        `(1+2i)+(3-4i)`
        `(1+2i)-(3-4i)`
        `(1+2i)*(3-4i)`
        `(1+2i)/(3-4i)`

Date May 02, 2023

Version: 0.554
Date: 07/05/2023
Add function inv(A) to compute the inverse matrix of A. Try

`A=[1,2,3;4,5,6;7,8,0]`
        `inv(A)`
        `:mode fraction`
        `inv(A)`

Date May 07, 2023

Version: 0.555
Date: 04/06/2023
By using clox (http://www.craftinginterpreters.com/), we make programing in Sowya possible. Try

`:mode clox`
        `fun echo(){var n=900000000000000000; while(n<900000000000000009){print n*n;n=n+1;}}`
        `echo();`
        `:q`

Date June 04, 2023

Version: 0.556
Date: 08/06/2023
In mode clox, we can input multiple lines. Try

>>:mode clox
>{
fun echo(){
  var n=9;
  while(n<20){
    print 2^n;
    n=n+1;
  }
 }
}
>echo();
>:q

Date June 08, 2023

Version: 0.557
Date: 11/06/2023
In mode clox, we add native function length() to return the length of string and function ith_char(s,i) to return the i-th char of string s.
Try

>>:mode clox
        var x="Hello Sowya!";
        print length(x);
        print ith_char(x,6);

Date June 11, 2023

Version: 0.558
Date: 14/06/2023
In mode clox, we add native function avg() to calculate the average value of several numbers.
Try

>>:mode clox
        print avg(12,3,4,5,98);
        var x=12;
        var y=29;print avg(x,y);

And we also add load file function. Suppose we write a function named avg(a,b) in the file avg.sy in the folder code.

Then try
        >>:mode clox
        load(code\avg.sy)
        print avg(2,3);

Date June 14, 2023

Version: 0.559
Date: 17/06/2023
In mode clox, we add native functions setprecision() and setmode().
Try

>>:mode clox
        print 1/2+1/3;
        setprecision(20);
        print 1/2+1/3;
        setmode(1);
        print 1/2+1/3;

Date June 17, 2023

Version: 0.560
Date: 21/06/2023
In mode clox, we improved the print function. It will print newline when `\n` accurred.
Try

>>:mode clox
        print 1/2+1/3;
        print "\n";
        var a=2;
        var b=3;
        var c=a*b;
        print a,"\n", b,"\n",c,"\n";

Also, we improved the variable declaration. Now we can define multiple variables in one line.
Try

var a=2, b=3, c=a*b;

Date June 21, 2023

Version: 0.561
Date: 04/07/2023
In mode clox, we fix a bug that we can not run the native function avg. The reason is that we forget claim the global variable pA in class Calculator.

Date July 04, 2023

Version: 0.562
Date: 08/07/2023
A bug is fixed. Try

:mode fraction
        printSeries((-1)^n*1/(2*n+1),n,0,10)
        (1/5+1/3)^(-2)
        (-1/3)^(3/2)

Date July 08, 2023

Version: 0.563
Date: 24/07/2023
Several functions are opened in the basic version. See which functions are available,

listfunctions()

Add operations for the matrix elementary transformations. Try

A=[1 2 3;4 5 6;7 8 0]
        transform(A, r2-r1*4)
        transform(A, r3-r1*7)
        transform(A, c1<-->c3)
        :mode fraction
        transform(A, c2*(-1/3))

Date July 24, 2023

Version: 0.564
Date: 25/07/2023
Make elementary transformation available for matrix with x. Try

A=[5x,1,2,3;x,x,1,2;1,2,x,3;x,1,2,2x]
        transform(A,r1<-->r3)
        transform(A, r2-r1*x)
        transform(A, r3-r1*5x)
        transform(A, r4-r1*x)transform(A, r2*(-1))
        transform(A, r3*(-1))
        transform(A, r4*(-1))
        transform(A, r3-r2*10)
        transform(A, r4-r2*2)
        transform(A, r2+r3*x)
        transform(A, r3-r4)

Date July 25, 2023

Version: 0.565
Date: 30/07/2023
Fix bug in multiplication for fraction. Try

A=[0,a,2,1;-a,0,d,3;-2,-d,0,1;-1,-3,-1,0]
        det(A)

Date July 30, 2023

Version: 0.566
Date: 31/07/2023
Add function transpose() to return the transpose matrix of the given matrix. For the above matrix A, Try

transpose(A)

Date July 31, 2023

Version: 0.567
Date: 02/08/2023
Addition, subtraction and multiplication of matrices are implemented. Try

A=[1 2;3 4]
        B=[-2 0;0 3]
        A+B
        A-B
        A*B
        A^2
        A+B*A

Date August 02, 2023

Version: 0.568
Date: 04/08/2023
Use unordered_map<> to store the variables.

Date August 04, 2023

Version: 0.569
Date: 05/08/2023
Fix a bug. In polyn mode, `x*x*x-3x*x+2x-5` will be transformed into `x^3-3x^2+2x-5`. Try it.

Date August 05, 2023

Version: 0.570
Date: 07/08/2023
Add two functions CofactorMatrix(A,i,j) and DetExpansion(A,r2). The first returns the (i,j)-th element of matrix A. The second will expand matrix A along ri(row i) or cj(column j).

Try

A=[1,0,-2;1,1,3;-2,3,1]
        CofactorMatrix(A,2,3)
        DetExpansion(A,r1)
        DetExpansion(A,c2)

Date August 07, 2023

Version: 0.571
Date: 10/08/2023
Add E() function to generate elementary matrix. E(n,i,j(k)) will generate the elmentary matrix E(i,j(k)) of order n. And E(n,i(k)) will generate the elementary matrix E(i(k)) of order n.
Try
        E(4,2,3(5))
        E(5,3(2))
        :list

Date August 10, 2023

Version: 0.572
Date: 19/08/2023
Add rank() function to calculate the rank of matrix.
Try
        A=[1 3 6;1 2 3;1 4 9]
        rank(A)
        rank(A,hint)

Date August 19, 2023

Version: 0.573
Date: 25/08/2023
Fix a bug in rank() function. To return the rank of matrix A, simply input rank(A). If we want to calculator the row rank of A, then input rank(A,row), which will use elementary row transformation of A to calculate the rank. Of course, you can input rank(A,col) to return the column rank of A. While rank(A,hint) also return the rank of A, it will use elementary row transformation when the rows of A is less or equal than the columns of A, and use the elementary column transformation when the rows of A is greater than the columns of A.

Date August 25, 2023

Version: 0.574
Date: 29/08/2023
We extend functionality to function eq24(). Also we add aliases `s24()` and `suo()`.

Try
        eq24(8,6,4,4)
        s24(11,10,5,1;24)
        suo(8,6,6,4;28)

Date August 29, 2023

Version: 0.575
Date: 01/09/2023
We extend functionality to function solve() to solve linear equations.

Try
        A=[1,1,-3,-1;3,-1,-3,4;1,5,-9,-8]
        b=[1;4;0]
        solve(A*x==b)

Date September 01, 2023

Version: 0.576
Date: 02/09/2023
Try
        A=[1,1,-3,-1;3,-1,-3,4;1,5,-9,-8]
        b=[1;4;0]
        solve(A*x==b,normal)
        solve(A*x==b,hint)
        solve(A*x==b,normal,hint)

Date September 02, 2023

Version: 0.577
Date: 09/10/2023
We add the ispolyn() function to check if the input string is a polynomial of x.
Try
        ispolyn(3*(9+2)x^3)

Date October 09, 2023

Version: 0.578
Date: 21/10/2023
Adapt to SciTE so that *.sy , *.sc files can be run in SciTE. where *.sy is a sowya file, which can be executed line by line by sowya.exe; And *.sc is a sowya clox programming file and can be executed by sowya.exe.
Date October 21, 2023

Version: 0.579
Date: 26/10/2023
When switching to clox mode, Sowya will automatically load the files in the `ext` directory. If this directory does not exist, it will create it. Now we can put the code of the custom function into the `ext` directory to enhance the functionality of Sowya.
Date October 26, 2023

Version: 0.580
Date: 14/12/2023
We add plugin system.
        list_plugins()  -- 列出所有插件的名称
        load_plugin(Pi)  -- 加载名为Pi的插件
        free_plugin(Pi)  -- 卸载名为Pi的插件

For example, when we load Pi plugin, we can type `Pi->print()` to print 15,000 decimal digits of Pi.
The plugin file is .dll file which is located in plugins or myplugins directory.
Date December 14, 2023

Version: 0.581
Date: 21/12/2023
Add sine function. Try:
        sin(1)
        sin(1.2)

Date December 21, 2023

Version: 0.582
Date: 25/12/2023
Add functionality to the sine function. Try:
        sin(1.5pi)
        sin(2/3pi)

Date December 25, 2023

Version: 0.583
Date: 29/12/2023
Add function deg2rad(). Try:
        deg2rad(15)

Date December 29, 2023

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程序代码

Calculator 的开发历史

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