mathjs/lib/esm/type/fraction/function/fraction.js

Math.js is an extensive math library for JavaScript and Node.js. It features a flexible expression parser with support for symbolic computation, comes with a large set of built-in functions and constants, and offers an integrated solution to work with dif

import { factory } from '../../../utils/factory.js';
import { deepMap } from '../../../utils/collection.js';
var name = 'fraction';
var dependencies = ['typed', 'Fraction'];
export var createFraction = /* #__PURE__ */factory(name, dependencies, _ref => {
  var {
    typed,
    Fraction
  } = _ref;

  /**
   * Create a fraction convert a value to a fraction.
   *
   * Syntax:
   *     math.fraction(numerator, denominator)
   *     math.fraction({n: numerator, d: denominator})
   *     math.fraction(matrix: Array | Matrix)         Turn all matrix entries
   *                                                   into fractions
   *
   * Examples:
   *
   *     math.fraction(1, 3)
   *     math.fraction('2/3')
   *     math.fraction({n: 2, d: 3})
   *     math.fraction([0.2, 0.25, 1.25])
   *
   * See also:
   *
   *    bignumber, number, string, unit
   *
   * @param {number | string | Fraction | BigNumber | Array | Matrix} [args]
   *            Arguments specifying the numerator and denominator of
   *            the fraction
   * @return {Fraction | Array | Matrix} Returns a fraction
   */
  return typed('fraction', {
    number: function number(x) {
      if (!isFinite(x) || isNaN(x)) {
        throw new Error(x + ' cannot be represented as a fraction');
      }

      return new Fraction(x);
    },
    string: function string(x) {
      return new Fraction(x);
    },
    'number, number': function numberNumber(numerator, denominator) {
      return new Fraction(numerator, denominator);
    },
    null: function _null(x) {
      return new Fraction(0);
    },
    BigNumber: function BigNumber(x) {
      return new Fraction(x.toString());
    },
    Fraction: function Fraction(x) {
      return x; // fractions are immutable
    },
    Object: function Object(x) {
      return new Fraction(x);
    },
    'Array | Matrix': function ArrayMatrix(x) {
      return deepMap(x, this);
    }
  });
});