External module "math/base/special/gamma-lanczos-sum-expg-scaled/docs/types/index.d"

Export assignment gammaLanczosSumExpGScaled

• gammaLanczosSumExpGScaled(x: number): number

• Calculates the Lanczos sum for the approximation of the gamma function (scaled by exp(-g), where g = 10.900511.

  Parameters

  • x: number

    input value

  Returns number

  Lanczos sum approximation

  Example

  var v = gammaLanczosSumExpGScaled( 4.0 );
  // returns ~0.018

  Example

  var v = gammaLanczosSumExpGScaled( -1.5 );
  // returns ~25.337

  Example

  var v = gammaLanczosSumExpGScaled( -0.5 );
  // returns ~-12.911

  Example

  var v = gammaLanczosSumExpGScaled( 0.5 );
  // returns ~1.772

  Example

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

  Example

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