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Function std.math.log1p

Calculates the natural logarithm of 1 + x.

For very small x, log1p(x) will be more accurate than log(1 + x).

x log1p(x) divide by 0? invalid? ±0.0 ±0.0 no no -1.0 -∞ yes no <-1.0 no yes +∞ -∞ no no

Prototype

real log1p(
  real x
) pure nothrow @nogc @safe;

Authors

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

License

Boost License 1.0.

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