Take a incoming vector, and replace 0's with ones
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.
Angle between two vectors
Return the first and last character of a string
Min of a Matrix
Find Out sum of principal diagonal element of given matrix
Simple String Concatenation
Sum two matrices
Find the index of the lowest number in a matrix
Automatic String Editing
Find the mean of two vectors
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