Additional test cases have been added.
Find the numeric mean of the prime numbers in a matrix.
Right and wrong
Determine the length of a string of characters
Matlab Basics - Pick out parts of a vector
Given the variable x as your input, multiply it by four, then divide it by two. Then put the result in y.
Matrix Ax=B problem
Matrix Max Finder
Check if inputted variable is a string or a number
Vector indexing: lower than mean
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