complex.js

URL: https://mirkwood.cs.edinboro.edu/~bennett/class/cmsc3780/spring2026/notes/javascript/code/six/complex.js
 
"use strict"

export class Complex {
    #real
    #imag

    constructor (a=0, b=0) {
       this.#real = a
       this.#imag = b
    }

    toString() {
       return this.#real + '+' + this.#imag + 'i'
    }

    Add(other){
        let rv = new Complex(this.#real, this.#imag)
        rv.#real += other.#real
        rv.#imag += other.#imag
        return rv
    }

    Sub(other){
        let rv = new Complex(this.#real, this.#imag)
        rv.#real -= other.#real
        rv.#imag -= other.#imag
        return rv
    }

    Mult(other) {
       let rv = new Complex(0, 0)
       rv.#real = this.#real * other.#real - this.#imag * other.#imag
       rv.#imag = this.#real * other.#imag + this.#imag * other.#real
       return(rv)
    }

    Div(other) {
       let rv = new Complex(0, 0)
       let tmp = other.#real * other.#real + other.#imag * other.#imag
       rv.#real = (this.#real * other.#real + this.#imag * other.#imag)/tmp
       rv.#imag = (this.#imag * other.#real - this.#real * other.#imag)/tmp
       return(rv)
    }

    Mag() {
       return Math.sqrt(this.#real * this.#real + this.#imag * this.#imag)
    }
}