Matrix-Matrix Multiplication in Machine Learning
2 min readJul 18, 2020
To multiply two matrices, the number of columns of the first matrix must equal the number of rows of the second matrix.An m x n matrix multiplied by an n x o matrix results in an m x o matrix.
We multiply two matrices by breaking it into several vector multiplications and concatenating the result.
Example-:
Applying this in machine learning problems:
You can try this code in octave/Matlab.
The output will be as follow:
