Delete x value in given vector y.
Exapmle x=5; y=[ 1 2 5 6 74 5 2 5]
result=[1 2 6 74 2]
Make one big string out of two smaller strings
Evaluating a polynomial
Sum of integers numbers
Divide polynomial p1 by p2.
Find sum of negative elements in row.
Find cosine between two given vectors u and v.
Display positive elements of matrix.
Opposite task convert string hexadecimal numbers array into array of decimal numbers .
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