Back to basics 25 - Valid variable names
Calculate the derivative of a polynomial
Create a two dimensional zero matrix
y equals x divided by 2
MATLAB Basic: rounding IV
Opposite task convert string hexadecimal numbers array into array of decimal numbers .
Opposite task convert binary numbers array into array of decimal numbers.
Count given word x in text.
Set x value to each odd index of vector y.
Sum positive elements of matrix.
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