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Function std.math.acos

Calculates the arc cosine of x, returning a value ranging from 0 to π.

x acos(x) invalid? >1.0 yes <-1.0 yes yes

Prototypes

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

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

float acos(
  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