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Function std.math.acosh

Calculates the inverse hyperbolic cosine of x.

Mathematically, acosh(x) = log(x + sqrt( x*x - 1))

1..∞ 1..log(real.max), ∞ x, acosh(x) , <1, 1, 0 +∞,+∞

Prototypes

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

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

float acosh(
  float 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.

Comments