68 lines
2.7 KiB
JavaScript
68 lines
2.7 KiB
JavaScript
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'use strict';
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var object = require('./utils/object');
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var bigConstants = require('./utils/bignumber/constants');
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function factory (type, config, load, typed, math) {
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// listen for changed in the configuration, automatically reload
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// constants when needed
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math.on('config', function (curr, prev) {
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if (curr.number !== prev.number) {
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factory(type, config, load, typed, math);
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}
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});
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math['true'] = true;
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math['false'] = false;
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math['null'] = null;
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math['uninitialized'] = require('./utils/array').UNINITIALIZED;
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if (config.number === 'BigNumber') {
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math['Infinity'] = new type.BigNumber(Infinity);
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math['NaN'] = new type.BigNumber(NaN);
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object.lazy(math, 'pi', function () {return bigConstants.pi(type.BigNumber)});
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object.lazy(math, 'tau', function () {return bigConstants.tau(type.BigNumber)});
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object.lazy(math, 'e', function () {return bigConstants.e(type.BigNumber)});
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object.lazy(math, 'phi', function () {return bigConstants.phi(type.BigNumber)}); // golden ratio, (1+sqrt(5))/2
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// uppercase constants (for compatibility with built-in Math)
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object.lazy(math, 'E', function () {return math.e;});
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object.lazy(math, 'LN2', function () {return new type.BigNumber(2).ln();});
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object.lazy(math, 'LN10', function () {return new type.BigNumber(10).ln()});
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object.lazy(math, 'LOG2E', function () {return new type.BigNumber(1).div(new type.BigNumber(2).ln());});
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object.lazy(math, 'LOG10E', function () {return new type.BigNumber(1).div(new type.BigNumber(10).ln())});
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object.lazy(math, 'PI', function () {return math.pi});
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object.lazy(math, 'SQRT1_2', function () {return new type.BigNumber('0.5').sqrt()});
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object.lazy(math, 'SQRT2', function () {return new type.BigNumber(2).sqrt()});
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}
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else {
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math['Infinity'] = Infinity;
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math['NaN'] = NaN;
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math.pi = Math.PI;
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math.tau = Math.PI * 2;
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math.e = Math.E;
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math.phi = 1.61803398874989484820458683436563811772030917980576286213545; // golden ratio, (1+sqrt(5))/2
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// uppercase constants (for compatibility with built-in Math)
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math.E = math.e;
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math.LN2 = Math.LN2;
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math.LN10 = Math.LN10;
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math.LOG2E = Math.LOG2E;
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math.LOG10E = Math.LOG10E;
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math.PI = math.pi;
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math.SQRT1_2 = Math.SQRT1_2;
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math.SQRT2 = Math.SQRT2;
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}
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// complex i
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math.i = type.Complex.I;
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// meta information
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math.version = require('./version');
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}
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exports.factory = factory;
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exports.lazy = false; // no lazy loading of constants, the constants themselves are lazy when needed
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exports.math = true; // request access to the math namespace
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