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Function std.math.exponential.exp2
Calculates 2x.
real exp2
(
real x
) pure nothrow @nogc @trusted;
double exp2
(
double x
) pure nothrow @nogc @safe;
float exp2
(
float x
) pure nothrow @nogc @safe;
x | exp2(x) |
---|---|
+∞ | +∞ |
-∞ | +0.0 |
NAN | NAN |
Example
import std .math .traits : isIdentical;
import std .math .operations : feqrel;
assert(isIdentical(exp2(0.0), 1.0));
assert(exp2(2.0) .feqrel(4.0) > 16);
assert(exp2(8.0) .feqrel(256.0) > 16);
Authors
Walter Bright, Don Clugston, Conversion of CEPHES math library to D by Iain Buclaw and David Nadlinger
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.