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Function std.math.log
Calculate the natural logarithm of x.
real log
(
real x
) pure nothrow @nogc @safe;
| x | log(x) | divide by 0? | invalid? |
|---|---|---|---|
| ±0.0 | -∞ | yes | no |
| <0.0 | NAN | no | yes |
| +∞ | +∞ | no | no |
Example
assert(feqrel(log(E), 1) >= realAuthors
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.