std/math

std/math provides common numeric operations.

API

pub fun abs(x: Int) Int;
pub fun min(a: Int, b: Int) Int;
pub fun max(a: Int, b: Int) Int;
pub fun sqrt(x: Float64) Float64;
pub fun floor(x: Float64) Float64;
pub fun ceil(x: Float64) Float64;

Function	Description
abs(x)	Absolute value of an integer
min(a, b)	Smaller of two integers
max(a, b)	Larger of two integers
sqrt(x)	Square root of a Float64
floor(x)	Round down to nearest integer (returns Float64)
ceil(x)	Round up to nearest integer (returns Float64)

Examples

Integer operations

import "std/math";
import "std/io" { printInt };

fun main() Int {
    printInt(math.abs(-42));       // 42
    printInt(math.abs(7));         // 7
    printInt(math.min(3, 8));      // 3
    printInt(math.max(3, 8));      // 8
    printInt(math.max(-5, -10));   // -5
    return 0;
}

Floating point operations

import "std/math";
import "std/io" { printFloat };

fun hypotenuse(a: Float64, b: Float64) Float64 {
    return math.sqrt(a * a + b * b);
}

fun main() Int {
    var h: Float64 = hypotenuse(3.0, 4.0);  // 5.0
    printFloat(h as Float);

    printFloat(math.floor(3.7) as Float);   // 3.0
    printFloat(math.ceil(3.2) as Float);    // 4.0
    return 0;
}