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

Export assignment truncn

• truncn(x: number, n: number): number

• Rounds a numeric value to the nearest multiple of 10^n toward zero.

  Notes

  • When operating on floating-point numbers in bases other than 2, rounding to specified digits can be inexact.

  Parameters

  • x: number

    input value

  • n: number

    integer power of 10

  Returns number

  rounded value

  Example

  // Round a value to 4 decimal places:
  var v = truncn( 3.141592653589793, -4 );
  // returns 3.1415

  Example

  // If n = 0, `truncn` behaves like `trunc`:
  var v = truncn( 3.141592653589793, 0 );
  // returns 3.0

  Example

  // Round a value to the nearest thousand:
  var v = truncn( 12368.0, 3 );
  // returns 12000.0