@rayyamhk/complex/lib/core/static/exp.js

A lightweight and easy-to-use library for you to manipulate complex numbers

"use strict";

/**
 * Calculates the exponential function with base E.
 * @memberof Complex
 * @static
 * @param {Complex} num - Exponent
 * @returns {Complex} The value of E to the power of num
 */
function exp(num) {
  if (!(num instanceof this)) {
    return this.NaN;
  }

  var re = num.getReal();
  var theta = num.getImaginary();
  var r = Math.exp(re);
  return new this(r * Math.cos(theta), r * Math.sin(theta));
}

module.exports = exp;