How can I multiply a row vector with each of two column vectors?

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wd w 2024-2-18

评论： Voss 2024-2-19

I have a row vector and two column vectors, and intend to perform their multiplication (element by element). The following is an example.

t = [1 2];

s = [(1:3)',(4:6)'];

The expected result:

1 4 2 8

2 5 4 10

3 6 6 12

Voss 2024-2-18

One way:

t = [1 2];
s = [(1:3)',(4:6)'];
reshape(t.*s(:),size(s,1),[])
ans = 3×4
     1     4     2     8
     2     5     4    10
     3     6     6    12

wd w 2024-2-19

Voss, thank you very much!

Voss 2024-2-19

You're welcome!

Torsten 2024-2-18

移动：Torsten 2024-2-18

t = [1 2];
s = [(1:3)',(4:6)'];
kron(t,s)
ans = 3x4
     1     4     2     8
     2     5     4    10
     3     6     6    12

wd w 2024-2-19

Torsten, thank you very much!

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