View source code
Display the source code in std/math/exponential.d from which this page was generated on github.
Report a bug
If you spot a problem with this page, click here to create a Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page. Requires a signed-in GitHub account. This works well for small changes. If you'd like to make larger changes you may want to consider using local clone.

Function std.math.exponential.exp

Calculates ex.

real exp (
  real x
) pure nothrow @nogc @trusted;

double exp (
  double x
) pure nothrow @nogc @safe;

float exp (
  float x
) pure nothrow @nogc @safe;

Special Values
x ex
+∞ +∞
-∞ +0.0


import std.math.operations : feqrel;
import std.math.constants : E;

writeln(exp(0.0)); // 1.0
assert(exp(3.0).feqrel(E * E * E) > 16);


Walter Bright, Don Clugston, Conversion of CEPHES math library to D by Iain Buclaw and David Nadlinger


Boost License 1.0.