log2

log2(number number) → real log2

Calculates the base 2 logarithm of the number number.

Parameters

• number A number in the range ]0; +∞[.

Return

• log2
• If number > 0, the base 2 logarithm of number.
• If number <= 0, returns NaN.

Python

In Python, math.log2() is the native function of the math module: if number <= 0, it raises a ValueError (math domain error) instead of returning NaN as LeekScript does.

Examples

log2(1) // 0.0 log2(10) // 3.3219280948873626 log2(16) // 4.0