External module "math/base/special/vercos/docs/types/index.d"

Export assignment vercos

• vercos(x: number): number

• Computes the versed cosine.

  Notes

  • The versed cosine is defined as 1 + cos(x).

  Parameters

  • x: number

    input value (in radians)

  Returns number

  versed cosine

  Example

  var v = vercos( 0.0 );
  // returns 2.0

  Example

  var v = vercos( 3.141592653589793/2.0 );
  // returns 1.0

  Example

  var v = vercos( -3.141592653589793/6.0 );
  // returns ~1.8660

  Example

  var v = vercos( NaN );
  // returns NaN