log2

Calculates the base-2 logarithm of x: log₂x

Special Values
x	log2(x)	divide by 0?	invalid?
±0.0	-∞	yes	no
<0.0	NaN	no	yes
+∞	+∞	no	no

@safe pure nothrow @nogc

real

log2

(

real x

)

Examples

assert(approxEqual(log2(1024.0L), 10));