Get derivarive of polynomial given as vector array.
p=[ 1 2 0 5 0 3 ];
result=[ 5 8 0 10 0 ];
Rounding off numbers to n decimals
Sum of series I
Finding an element in a vector
factorial of a number x
Replace x value into y value in string text.
Solve expression II
Convert array of decimal numbers into hexadecimal numbers array.
Sum positive elements of matrix.
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