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Function std.math.atan

Calculates the arc tangent of x, returning a value ranging from -π/2 to π/2.

x atan(x) invalid? ±0.0 ±0.0 no ±∞ yes

Prototypes

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

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

float atan(
  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