Why change pi? there is pi built into matlab.
Find the sum of all the numbers of the input vector
Compute a dot product of two vectors x and y
07 - Common functions and indexing 4
Add a row of zeros on top of a matrix
Find out total non zero element of matrix
Vector with a repeated entry
Square root of a number
Corresponding ASCII code.
If you have matrix A, create matrix B using matrix A as an "element"
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