Rust Complex

rust implement for Complex Number

install

bash cargo add swnb-complex

usage

```rust use swnb_complex::*;

fn main() { let a = c!(3 + i 2); let b = c!(2 - i 3);

let c = a * b;
assert_eq!(c, (12, -9 + 4).into());

let c = a + b;
assert_eq!(c, c!(5 - i 1));

let c = a - b;
assert_eq!(c, c!(1 + i 5));

assert_eq!(b - a, -c);

} ```