91 lines
3.3 KiB
JavaScript
91 lines
3.3 KiB
JavaScript
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import { factory } from '../../utils/factory.js';
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import { deepMap } from '../../utils/collection.js';
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import { createAlgorithm14 } from '../../type/matrix/utils/algorithm14.js';
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var name = 'fix';
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var dependencies = ['typed', 'Complex', 'matrix', 'ceil', 'floor'];
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export var createFix = /* #__PURE__ */factory(name, dependencies, _ref => {
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var {
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typed,
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Complex: _Complex,
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matrix,
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ceil,
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floor
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} = _ref;
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var algorithm14 = createAlgorithm14({
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typed
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});
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/**
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* Round a value towards zero.
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* For matrices, the function is evaluated element wise.
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*
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* Syntax:
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*
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* math.fix(x)
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*
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* Examples:
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*
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* math.fix(3.2) // returns number 3
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* math.fix(3.8) // returns number 3
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* math.fix(-4.2) // returns number -4
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* math.fix(-4.7) // returns number -4
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*
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* math.fix(3.12, 1) // returns number 3.1
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* math.fix(3.18, 1) // returns number 3.1
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* math.fix(-4.12, 1) // returns number -4.1
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* math.fix(-4.17, 1) // returns number -4.1
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*
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* const c = math.complex(3.22, -2.78)
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* math.fix(c) // returns Complex 3 - 2i
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* math.fix(c, 1) // returns Complex 3.2 - 2.7i
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*
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* math.fix([3.2, 3.8, -4.7]) // returns Array [3, 3, -4]
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* math.fix([3.2, 3.8, -4.7], 1) // returns Array [3.2, 3.8, -4.7]
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*
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* See also:
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*
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* ceil, floor, round
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*
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* @param {number | BigNumber | Fraction | Complex | Array | Matrix} x Number to be rounded
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* @param {number | BigNumber | Array} [n=0] Number of decimals
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* @return {number | BigNumber | Fraction | Complex | Array | Matrix} Rounded value
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*/
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return typed('fix', {
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number: function number(x) {
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return x > 0 ? floor(x) : ceil(x);
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},
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'number, number | BigNumber': function numberNumberBigNumber(x, n) {
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return x > 0 ? floor(x, n) : ceil(x, n);
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},
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Complex: function Complex(x) {
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return new _Complex(x.re > 0 ? Math.floor(x.re) : Math.ceil(x.re), x.im > 0 ? Math.floor(x.im) : Math.ceil(x.im));
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},
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'Complex, number | BigNumber': function ComplexNumberBigNumber(x, n) {
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return new _Complex(x.re > 0 ? floor(x.re, n) : ceil(x.re, n), x.im > 0 ? floor(x.im, n) : ceil(x.im, n));
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},
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BigNumber: function BigNumber(x) {
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return x.isNegative() ? ceil(x) : floor(x);
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},
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'BigNumber, number | BigNumber': function BigNumberNumberBigNumber(x, n) {
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return x.isNegative() ? ceil(x, n) : floor(x, n);
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},
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Fraction: function Fraction(x) {
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return x.s < 0 ? x.ceil() : x.floor();
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},
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'Fraction, number | BigNumber': function FractionNumberBigNumber(x, n) {
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return x.s < 0 ? x.ceil(n) : x.floor(n);
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},
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'Array | Matrix': function ArrayMatrix(x) {
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// deep map collection, skip zeros since fix(0) = 0
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return deepMap(x, this, true);
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},
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'Array | Matrix, number | BigNumber': function ArrayMatrixNumberBigNumber(x, n) {
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// deep map collection, skip zeros since fix(0) = 0
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return deepMap(x, i => this(i, n), true);
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},
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'number | Complex | BigNumber, Array': function numberComplexBigNumberArray(x, y) {
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// use matrix implementation
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return algorithm14(matrix(y), x, this, true).valueOf();
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}
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});
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});
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