Idiom #77 Complex number

Declare a complex x and initialize it with value (3i - 2). Then multiply it by i.

let i = ( 0 :+ 1 ) ; x = 3 * i - 2 in x * i

import std.complex;

auto x = complex(-2, 3);
x * complex(0, 1);

x := 3i - 2
x *= 1i

var math = require('mathjs');

var x = math.complex(-2, 3);
x = math.multiply(x, math.i);

import org.apache.commons.math4.complex.Complex;

Complex x = new Complex(-2.0, 3.0);
x = x.multiply(Complex.I);

uses ucomplex;

var
  C: Complex;
begin
  C := 3*i - 2;
end.

use Math::Complex;

my $x = cplx(-2, 3);
$x *= i;

use Math::Complex;

my $x = 3*i - 2;
$x *= i;

x = 3j-2
y = x * 1j

x = 3i - 2
x *= 1i

extern crate num;
use num::Complex;

let mut x = Complex::new(-2, 3);
x *= Complex::i();

deleplace