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

Export assignment rsqrtf

• rsqrtf(x: number): number

• Computes the reciprocal square root of a single-precision floating-point number.

  Notes

  • For x < 0, the reciprocal square root is not defined.

  Parameters

  • x: number

    input value

  Returns number

  reciprocal square root of x

  Example

  var v = rsqrtf( 4.0 );
  // returns 0.5

  Example

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

  Example

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

  Example

  var v = rsqrtf( -4.0 );
  // returns NaN

  Example

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