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.
Remove all the words that end with "ain"
Flip the main diagonal of a matrix
Find out rooms, peak to peak, average for a square wave.
calculate interest saved because of reduction of interest rate
Cumulative product of a vector
Find Excess 3 code of given decimal number.
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