Replace NaNs with the number that appears to its left in the row.
Set the array elements whose value is 13 to 0
Side of an equilateral triangle
ASCII code of a leter.
Write a code that will follow the equation y = x * (x + x) * x.
Given the variable x as your input, multiply it by four, then divide it by two. Then put the result in y.
Vector with a repeated entry
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