The letter i is technically a complex number. So it should return true.
Rafael, the question askes for an integer specifically and not a number (let alone a complex number).
Back to basics 14 - Keywords
Length of the hypotenuse
Sum the 'edge' values of a matrix
Find maximum value of a curve
Vectors counting by 2
Cross ("+") flag returns
Create the flag of Ramumbia
Create a "+" flag
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