Source code in the v programming language

import math

fn main() {
    x := -1.2345
    println("e = ${math.e}")
    println("pi = ${math.pi}")
    println("sqrt(4) = ${math.sqrt(4)}")
    println("log(e) = ${math.log(math.e)}")
    println("exp(x) = ${math.exp(x)}")
    println("abs(x) = ${math.abs(x)}")
    println("floor(x) = ${math.floor(x)}")
    println("ceil(x) = ${math.ceil(x)}")
    println("pow(-x, x) = ${math.pow(-x, x)}")
}