Find cosine between two given vectors u and v.
u = [5 2 0 5 3 0];
v = [3 2 5 1 0 2];
result = 0.4611;
Increment a number, given its digits
Generate a random matrix A of (1,-1)
Area of a disk
Find the area of a triangle
Find product of eigenvalues of n*n magic matrix.
Find sum of negative elements in row.
Convert array of decimal numbers into hexadecimal numbers array.
Divide polynomial p1 by p2.
Opposite task convert string hexadecimal numbers array into array of decimal numbers .
Multiply two polynomials p and q given in in vector representation.
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