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vectorization in tensors, how to add vector and matrix

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Noya Linder
Noya Linder 2023-7-24
评论： Voss 2023-8-15
Hi, say I have a 3X4 matrix M and a 1X100 row vector V. I want to add them (M+V) to create a 3D tensor T of 100X3X4. Meaning, I want to get a tensor consisting of the M matrix + V(index).
How should I go about that?
I previously asked this question but I just want the simplest possible way to do that

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回答（1 个）

Voss
Voss 2023-7-24
编辑：Voss 2023-7-24
Ran in:
M = rand(3,4);
V = rand(1,100);
result = reshape(M,[1 size(M)]) + V(:);
size(result)
ans = 1×3
100 3 4

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