In this sequence of problems, we will generate random matrices (2d arrays), and calculate the product by using by both inner and outer product methods and then compare them with the product implemented

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
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In this sequence of problems, we will generate random matrices (2d arrays), and calculate the product by using by both inner and outer product methods and then compare them with the product implemented in numpy.

Verify that a matrix multiplied by a column vector is simply a linear combination of the columns of the matrix. Namely, if the columns of the matrix A are a_1, a_2, .. a_n and the vector x is (x_1,... x_n), then Ax = x_1 a_1 + ... + x_n a_n. Explain why this is simply the outer product way of multiplying A and x.

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