Please improve the test suite. There is only one test case—three is a recommended minimum, though more may be necessary to completely and adequately test what is being asked.
How to subtract?
05 - Vector Equations 3
07 - Common functions and indexing 2
BASICS - sum part of vector
Vector Element Multiplication
Vector indexing: lower than mean
Find the index of the lowest number in a matrix
Sum two matrices
Matrix element wise multiplication
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