If I let A, B, and C be 2x2 matrices, is it possible for me to assign a label to each matrix element in matrix C where C = A*B?

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Craig Egan Allistair Tan
评论： Sam Chak 2022-6-4
Let A, B, and C be separate 2x2 matrices. In this case, we let matrix C = A*B.
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Matt J
Matt J 2022-6-4
编辑：Matt J 2022-6-4
Ran in:
I'm talking about assigning a variable to each matrix element
One way,
A=rand(2);
B=rand(2);
C=A*B,
C = 2×2
0.2598 0.3906 0.5097 0.7454
tmp=num2cell(C);
[c1,c2,c3,c4]=deal(tmp{:})
c1 = 0.2598
c2 = 0.5097
c3 = 0.3906
c4 = 0.7454
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Walter Roberson
Walter Roberson 2022-6-4
Note that changing the c* variables will not change the matrix. The above code does not define the c* variables as being "references" to the array elements, only as copies of the array elements. There is no way to create references to individual elements of a numeric array.

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Matt J
Matt J 2022-6-4
编辑：Matt J 2022-6-4
Ran in:
The attached class might be what you are looking for, if all you want to do are the operations C=A*B. To understand what it's doing, you need to get familiar with handle classes.
A=myclass(rand(2)), B=myclass(rand(2)),
A =
0.7690 0.7854 0.5502 0.8403
B =
0.6974 0.3235 0.7494 0.6334
C=A*B
C =
1.1248 0.7462 1.0134 0.7102
c12=C(1,2)
c12 =
0.7462
C(1,2)=3
C =
1.1248 3.0000 1.0134 0.7102
c12
c12 =
3

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