"use strict"; Object.defineProperty(exports, "__esModule", { value: true }); exports.createSqrt = void 0; var _factory = require("../../utils/factory.js"); const name = 'sqrt'; const dependencies = ['config', 'typed', 'Complex']; const createSqrt = exports.createSqrt = /* #__PURE__ */(0, _factory.factory)(name, dependencies, _ref => { let { config, typed, Complex } = _ref; /** * Calculate the square root of a value. * * For matrices, if you want the matrix square root of a square matrix, * use the `sqrtm` function. If you wish to apply `sqrt` elementwise to * a matrix M, use `math.map(M, math.sqrt)`. * * Syntax: * * math.sqrt(x) * * Examples: * * math.sqrt(25) // returns 5 * math.square(5) // returns 25 * math.sqrt(-4) // returns Complex 2i * * See also: * * square, multiply, cube, cbrt, sqrtm * * @param {number | BigNumber | Complex | Unit} x * Value for which to calculate the square root. * @return {number | BigNumber | Complex | Unit} * Returns the square root of `x` */ return typed('sqrt', { number: _sqrtNumber, Complex: function (x) { return x.sqrt(); }, BigNumber: function (x) { if (!x.isNegative() || config.predictable) { return x.sqrt(); } else { // negative value -> downgrade to number to do complex value computation return _sqrtNumber(x.toNumber()); } }, Unit: function (x) { // Someday will work for complex units when they are implemented return x.pow(0.5); } }); /** * Calculate sqrt for a number * @param {number} x * @returns {number | Complex} Returns the square root of x * @private */ function _sqrtNumber(x) { if (isNaN(x)) { return NaN; } else if (x >= 0 || config.predictable) { return Math.sqrt(x); } else { return new Complex(x, 0).sqrt(); } } });