Posted by haifeng on 2022-12-07 10:04:57 last update 2022-12-07 10:04:57 | Answers (0) | 收藏
Solve the indefinite equation :
5*X1+8*X2 = 7
u1=7-2*u0
---------------
X1 = -1*u1+u0
X2 = -1*u0+u1
X1 = -1*X2+u0
------------------------
Posted by haifeng on 2022-09-30 20:46:35 last update 2022-09-30 23:23:08 | Answers (0) | 收藏
B=[3 21 27/4;
1 -1 0;
-8 -2 37/4]
输入该矩阵, 出现 Bug.
>> B=[3 21 27/4;
B=[3 21 27/4;
1 -1 0;
-8 -2 37/4]
input> [3,21,27/4;1-1,0;-8,-2,37/4]
det(B)=0
----------------------------
type: matrix
name: B
value:
3 21 27/4
1-1 0 0
-8 -2 37/4
determinant: 0
--------------------
已经修复
>> B=[3 21 27/4;
B=[3 21 27/4;
1 -1 0;
-8 -2 37/4]
input> [3,21,27/4;1,-1,0;-8,-2,37/4]
det(B)=-289.50
----------------------------
type: matrix
name: B
value:
3 21 27/4
1 -1 0
-8 -2 37/4
determinant: -289.50
--------------------
Posted by haifeng on 2022-09-05 07:59:25 last update 2022-09-15 08:23:22 | Answers (0) | 收藏
当在 [ 后有空格或者; 后有空格等情况, parser 自动插入了多余的逗号.
>> A=[ 1 2; 3 4 ]
input> [,1,2;,3,4,],;
经过不断完善, 现在的输入规则是这样的.
calculator.exe
>> A=[ 1,2 3; 4 5, 7
A=[ 1,2 3; 4 5, 7
; 2 3]
input> [1,2,3;4,5,7;2,3]
det(A)=13
----------------------------
type: matrix
name: A
value:
1 2 3
4 5 7
2 3 0
determinant: 13
--------------------
CalculatorApp.exe
输入
A=[ 1,2 3; 4 5, 7
; 2 3]
输出
[var] A
1 2 3
4 5 7
2 3 0
input> [1,2,3;4,5,7;2,3]
det(A)=13
--------------------
>>
:version
0.518