Trunc

Rounds toward zero.

Module: Math

Signature

func Trunc(x: float64) -> float64;
func Trunc(x: float32) -> float32;

Parameters

Name	Type	Description
x	float64 / float32	The value to round.

Returns

The integer part of x, discarding any fractional part, still represented as a floating-point number. Trunc(-0.4) keeps its sign and is -0.0. Infinities and NaNs pass through unchanged.

Example

import Math::Trunc;

let a = Trunc(3.9);  // 3.0
let b = Trunc(-3.9); // -3.0

See also

• Math — the module overview
• Floor — round down
• Ceil — round up
• Round — round to the nearest integer
• Mod — the remainder built on this truncation