Generate vector according to sign of vector
Example: If A=[-2 0 5] then output must be[-1 0 1]
meaning that for negative number,value is -1.
meaning that for Positive number,value is 1. and for zero is 0.
Select every other element of a vector
Find the alphabetic word product
Back to basics 7 - Equal NaNs
Number of digits in an integer
Sum of odd numbers in a matrix
Element by element multiplication of two vectors
Rotate Matrix @180 degree
Find out of matrix transpose Complex conjugate
Crate a vector of logarithmically spaced
Create vector as shown in test cases
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