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version 2.103.0

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Function std.math.trigonometry.sin

Returns sine of x. x is in radians.

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

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

float sin (
  float x
) pure nothrow @nogc @safe;

Special Values
x sin(x) invalid?
NAN NAN yes
±0.0 ±0.0 no
±∞ NAN yes

Parameters

NameDescription
x angle in radians (not degrees)

Returns

sine of x

See Also

cos, tan, asin

Bugs

Results are undefined if |x| >= 264.

Example

import std.math.constants : PI;
import std.stdio : writefln;

void someFunc()
{
  real x = 30.0;
  auto result = sin(x * (PI / 180)); // convert degrees to radians
  writefln("The sine of %s degrees is %s", x, result);
}

Authors

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

License

Boost License 1.0.