The title and description of this problem have been cleaned up. Also, its test suite has been expanded and improved.
Remove the Zero
Create a Matrix of Zeros
Height of a right-angled triangle
Find the sum of n squares
Convert array of decimal numbers into hexadecimal numbers array.
Create a square matrix with given conditions
Find the sines of an isosceles triangle when given its area and height
Find sum of negative elements in row.
Find scalar product of two polynomials a and b, given as vector array.
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