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

Export assignment erfinv

• erfinv(x: number): number

• Evaluates the inverse error function.

  Notes

  • If |x| > 1, the function returns NaN.
  • As the inverse error function is an odd function (i.e., erfinv(-x) == -erfinv(x)), if provided -0, the function returns -0.

  Parameters

  • x: number

    input value

  Returns number

  function value

  Example

  var y = erfinv( 0.5 );
  // returns ~0.4769

  Example

  var y = erfinv( 0.8 );
  // returns ~0.9062

  Example

  var y = erfinv( 0.0 );
  // returns 0.0

  Example

  var y = erfinv( -0.0 );
  // returns -0.0

  Example

  var y = erfinv( -1.0 );
  // returns -Infinity

  Example

  var y = erfinv( 1.0 );
  // returns Infinity

  Example

  var y = erfinv( NaN );
  // returns NaN