COT()

Cotangent of the argument

Syntax

      COT( nRadiant ) -> nCotangent

Arguments

<nRadiant> an angle size given in radiants

Returns

<nCotangent> the cotangent of <nRadiant>

Description

The function COT() calculates the cotangent 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 COT() function is the ankathede-counterkathede-ratio of a right-angled triangle, or, cot(x) = cos(x)/sin(x)=1/tan(x).

Examples

      ? cot( 1.0 ) // --> 0.6420...

Tests

      cot( PI() / 4 ) == 1
      cot( PI() / 2 ) == 0

Compliance

COT() is compatible with CT3’s COT().

Platforms

All

Files

Source is trig.c, library is libct.

Seealso

SIN(), COS(), TAN(), ASIN(), ACOS(), ATAN(), ATN2(), SINH(), COSH(), TANH(), RTOD(), DTOR(), PI()