Multiplying Matrices, but with elements added together

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Kevin Shen 2020-10-10

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评论： Star Strider 2020-10-10

Hello!

I have vector matrix A (3x1) and row matrix B (1x3). When multipying A*B, instead of having each element in the new 3x3 matrix be the elements multiplied together, is there a way to still make the 3x3 matrix but instead of each element of one matrix being multiplied by the elements of the other matrix, they would be added together.

If I don't make sence please tell me, I am new to MATLAB. Image of desired outcome below.

Thanks!

Kevin

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Kevin Shen 2020-10-10

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Star Strider 2020-10-10

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Yes, there is!

Try this:

A = [2; 3; 4];
B = [1 3 5];
C = bsxfun(@times, A, B)                        % Before R2016b
C = A * B                                       % R2016b And Later

producing (for both):

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Kevin Shen 2020-10-10

Thank you so much!

Star Strider 2020-10-10

As always, my pleasure!

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MATLAB Language Fundamentals Matrices and Arrays Creating and Concatenating Matrices

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