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

Export assignment fibonacci

• fibonacci(n: number): number

• Computes the nth Fibonacci number.

  Notes

  • If n is greater than 78, the function returns NaN, as larger Fibonacci numbers cannot be accurately represented due to limitations of double-precision floating-point format.
  • If not provided a nonnegative integer value, the function returns NaN.

  Parameters

  • n: number

    the Fibonacci number to compute

  Returns number

  Fibonacci number

  Example

  var y = fibonacci( 0 );
  // returns 0

  Example

  var y = fibonacci( 1 );
  // returns 1

  Example

  var y = fibonacci( 2 );
  // returns 1

  Example

  var y = fibonacci( 3 );
  // returns 2

  Example

  var y = fibonacci( 4 );
  // returns 3

  Example

  var y = fibonacci( 5 );
  // returns 5

  Example

  var y = fibonacci( 6 );
  // returns 8

  Example

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

  Example

  var y = fibonacci( 3.14 );
  // returns NaN

  Example

  var y = fibonacci( -1.0 );
  // returns NaN