Replace NaNs with the number that appears to its left in the row.
Back to basics 14 - Keywords
Sum of series I
Matlab Basics - y as a function of x
Find sum of negative elements in row.
Calculate roots of polynomial given as vector array.
Find scalar product of two polynomials a and b, given as vector array.
Opposite task convert string hexadecimal numbers array into array of decimal numbers .
Get derivarive of polynomial given as vector array.
Count given word x in text.
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