Menu
Search

Library Reference

version 2.100.0

overview

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 a local clone.

std.math.constants

This is a submodule of std.math.
It contains several useful mathematical constants.
License:
Boost License 1.0.
Authors:
Walter Bright, Don Clugston

Source std/math/constants.d

enum real E;
e = 2.718281...
enum real LOG2T;
log210 = 3.321928...
enum real LOG2E;
log2e = 1.442695...
enum real LOG2;
log102 = 0.301029...
enum real LOG10E;
log10e = 0.434294...
enum real LN2;
ln 2 = 0.693147...
enum real LN10;
ln 10 = 2.302585...
enum real PI;
π = 3.141592...
enum real PI_2;
π / 2 = 1.570796...
enum real PI_4;
π / 4 = 0.785398...
enum real M_1_PI;
1 / π = 0.318309...
enum real M_2_PI;
2 / π = 0.636619...
enum real M_2_SQRTPI;
2 / √π = 1.128379...
enum real SQRT2;
√2 = 1.414213...
enum real SQRT1_2;
√½ = 0.707106...