“use strict”;Object.setPrototypeOf=Object.setPrototypeOf||function(e,t){return e.__proto__=t,e};var quadraticFormula=function(e,t,r){return(-t-Math.sqrt(Math.pow(t,2)+4*e*r))/(2*e)},degreesToRadians=function(e){return e*Math.PI/180},radiansToDegrees=function(e){return 180*e/Math.PI},isNegative=function(e){return-Math.abs(e)==e},average=function(e){var t=0,r=!0,n=!1,o=void 0;try{for(var a,i=e();!(r=(a=i.next()).done);r=!0){t+=a.value}}catch(e){n=!0,o=e}finally{try{!r&&i.return&&i.return()}finally{if(n)throw o}}return t/e.length},_createClass=function(){function n(e,t){for(var r=0;r<t.length;r++){var n=t;n.enumerable=n.enumerable||!1,n.configurable=!0,“value”in n&&(n.writable=!0),Object.defineProperty(e,n.key,n)}}return function(e,t,r){return t&&n(e.prototype,t),r&&n(e,r),e}}();function _classCallCheck(e,t){if(!(e instanceof t))throw new TypeError(“Cannot call a class as a function”)}function _possibleConstructorReturn(e,t){if(!e)throw new ReferenceError(“this hasn't been initialised - super() hasn't been called”);return!t||“object”!=typeof t&&“function”!=typeof t?e:t}function _inherits(e,t){if(“function”!=typeof t&&null!==t)throw new TypeError(“Super expression must either be null or a function, not ”+typeof t);e.prototype=Object.create(t&&t.prototype,{constructor:{value:e,enumerable:!1,writable:!0,configurable:!0}}),t&&(Object.setPrototypeOf?Object.setPrototypeOf(e,t):e.__proto__=t)}var MathError=function(e){function a(){var e;_classCallCheck(this,a);for(var t=arguments.length,r=Array(t),n=0;n