# SIN()

Sine of the argument

Syntax

  SIN (nRadiant) -> nSine

Arguments

  <nRadiant> an angle size given in radiants

Returns

  <nSine> the sine of <nRadiant>

Description

  The function SIN() calculates the sine of an angle whose size is given in radiants (full angle equals 2*Pi - see DTOR() for angle size given in degress). A common geometric interpretation of the SIN() function is the counterkathede-hypotenuse-ratio of a right-angled triangle.

Examples

          ? sin (0.0) --> 0.0
          ? sin (1.0) --> 0.8414...
    Tests
          sin (0.0) == 0.0
          sin (PI()/4) == sqrt(1/2)
          sin (PI()/2) == 1.0
          sin (PI()) == 0.0

Status

  Ready

Compliance

  SIN() is compatible with CT3's SIN().

Platforms

  All

Files

  Source is trig.c, library is libct.

See Also

- COS()
- TAN()
- COT()
- ASIN()
- ACOS()
- ATAN()
- ATN2()
- SINH()
- COSH()
- TANH()
- RTOD()
- DTOR()
- PI()