External module "math/base/special/powm1/docs/types/index.d"

Export assignment powm1

• powm1(b: number, x: number): number

• Evaluates bˣ - 1.

  Notes

  • When b is close to 1 and/or x is small, this function is more accurate than naively computing bˣ and subtracting 1.

  Parameters

  • b: number

    base

  • x: number

    exponent

  Returns number

  function value

  Example

  var y = powm1( 2.0, 3.0 );
  // returns 7.0

  Example

  var y = powm1( 4.0, 0.5 );
  // returns 1.0

  Example

  var y = powm1( 0.0, 100.0 );
  // returns -1.0

  Example

  var y = powm1( 100.0, 0.0 );
  // returns 0.0

  Example

  var y = powm1( 0.0, 0.0 );
  // returns 0.0

  Example

  var y = powm1( 3.141592653589793, 5.0 );
  // returns ~305.0197

  Example

  var y = powm1( NaN, 3.0 );
  // returns NaN

  Example

  var y = powm1( 5.0, NaN );
  // returns NaN