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

Export assignment gammaln

• gammaln(x: number): number

• Evaluates the natural logarithm of the gamma function.

  Parameters

  • x: number

    input value

  Returns number

  function value

  Example

  var v = gammaln( 1.0 );
  // returns 0.0

  Example

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

  Example

  var v = gammaln( 4.0 );
  // returns ~1.792

  Example

  var v = gammaln( -0.5 );
  // returns ~1.266

  Example

  var v = gammaln( 0.5 );
  // returns ~0.572

  Example

  var v = gammaln( 0.0 );
  // returns Infinity

  Example

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