[BUG]20250430
[BUG] DATE:20250430
>> J=[3^n n*3^(n-1);0 3^n]
input> [3^n,n*3^(n-1);0,3^n]
--------------------
3^n n*3^(n-1)
0 3^n
--------------------
>> A=[1 2;0 2]
input> [1,2;0,2]
--------------------
1 2
0 2
--------------------
>> A*J
out>
3|1*^n n*3^(n-1)+2|1*3|1*^n
0 2|1*3|1*^n
------------------------
在 v0.631 版本中已经修正.
--------------------
>> A*J
out>
3^n n*3^(n-1)+2*3^n
0 2*3^n
------------------------