dividedBy(v) {
        let c = Complex.from(v);
        let d = c.norm2();
        if (d === 0) {
            throw new Error("Division by Zero");
        }

        let n = this.times(c.conjugate());
        return new Complex(n.real / d, n.imag / d);
    }
Returns the ratio of the receiving complex value to the given value.
@param {!number|!Complex} v
@returns {!Complex}