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

Export assignment factorial

• factorial(x: number): number

• Evaluates the factorial of x.

  Parameters

  • x: number

    input value

  Returns number

  factorial

  Example

  var v = factorial( 3.0 );
  // returns 6.0

  Example

  var v = factorial( -1.5 );
  // returns ~-3.545

  Example

  var v = factorial( -0.5 );
  // returns ~1.772

  Example

  var v = factorial( 0.5 );
  // returns ~0.886

  Example

  var v = factorial( -10.0 );
  // returns NaN

  Example

  var v = factorial( 171.0 );
  // returns Infinity

  Example

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