190 lines
6.8 KiB
JavaScript
190 lines
6.8 KiB
JavaScript
"use strict";
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var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.createFloorNumber = exports.createFloor = void 0;
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var _decimal = _interopRequireDefault(require("decimal.js"));
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var _factory = require("../../utils/factory.js");
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var _collection = require("../../utils/collection.js");
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var _number = require("../../utils/number.js");
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var _nearlyEqual = require("../../utils/bignumber/nearlyEqual.js");
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var _matAlgo11xS0s = require("../../type/matrix/utils/matAlgo11xS0s.js");
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var _matAlgo12xSfs = require("../../type/matrix/utils/matAlgo12xSfs.js");
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var _matAlgo14xDs = require("../../type/matrix/utils/matAlgo14xDs.js");
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const name = 'floor';
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const dependencies = ['typed', 'config', 'round', 'matrix', 'equalScalar', 'zeros', 'DenseMatrix'];
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const createFloorNumber = exports.createFloorNumber = /* #__PURE__ */(0, _factory.factory)(name, ['typed', 'config', 'round'], _ref => {
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let {
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typed,
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config,
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round
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} = _ref;
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return typed(name, {
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number: function (x) {
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if ((0, _number.nearlyEqual)(x, round(x), config.relTol, config.absTol)) {
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return round(x);
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} else {
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return Math.floor(x);
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}
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},
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'number, number': function (x, n) {
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if ((0, _number.nearlyEqual)(x, round(x, n), config.relTol, config.absTol)) {
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return round(x, n);
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} else {
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let [number, exponent] = `${x}e`.split('e');
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const result = Math.floor(Number(`${number}e${Number(exponent) + n}`));
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[number, exponent] = `${result}e`.split('e');
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return Number(`${number}e${Number(exponent) - n}`);
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}
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}
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});
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});
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const createFloor = exports.createFloor = /* #__PURE__ */(0, _factory.factory)(name, dependencies, _ref2 => {
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let {
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typed,
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config,
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round,
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matrix,
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equalScalar,
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zeros,
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DenseMatrix
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} = _ref2;
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const matAlgo11xS0s = (0, _matAlgo11xS0s.createMatAlgo11xS0s)({
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typed,
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equalScalar
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});
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const matAlgo12xSfs = (0, _matAlgo12xSfs.createMatAlgo12xSfs)({
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typed,
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DenseMatrix
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});
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const matAlgo14xDs = (0, _matAlgo14xDs.createMatAlgo14xDs)({
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typed
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});
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const floorNumber = createFloorNumber({
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typed,
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config,
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round
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});
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/**
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* Round a value towards minus infinity.
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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.floor(x)
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* math.floor(x, n)
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* math.floor(unit, valuelessUnit)
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* math.floor(unit, n, valuelessUnit)
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*
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* Examples:
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*
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* math.floor(3.2) // returns number 3
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* math.floor(3.8) // returns number 3
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* math.floor(-4.2) // returns number -5
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* math.floor(-4.7) // returns number -5
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*
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* math.floor(3.212, 2) // returns number 3.21
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* math.floor(3.288, 2) // returns number 3.28
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* math.floor(-4.212, 2) // returns number -4.22
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* math.floor(-4.782, 2) // returns number -4.79
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*
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* const c = math.complex(3.24, -2.71)
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* math.floor(c) // returns Complex 3 - 3i
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* math.floor(c, 1) // returns Complex 3.2 -2.8i
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*
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* const unit = math.unit('3.241 cm')
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* const cm = math.unit('cm')
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* const mm = math.unit('mm')
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* math.floor(unit, 1, cm) // returns Unit 3.2 cm
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* math.floor(unit, 1, mm) // returns Unit 32.4 mm
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*
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* math.floor([3.2, 3.8, -4.7]) // returns Array [3, 3, -5]
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* math.floor([3.21, 3.82, -4.71], 1) // returns Array [3.2, 3.8, -4.8]
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*
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* math.floor(math.tau, [2, 3]) // returns Array [6.28, 6.283]
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*
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* // Note that floor(array, array) currently not implemented.
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*
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* See also:
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*
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* ceil, fix, round
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*
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* @param {number | BigNumber | Fraction | Complex | Unit | Array | Matrix} x Value to be rounded
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* @param {number | BigNumber | Array} [n=0] Number of decimals
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* @param {Unit} [valuelessUnit] A valueless unit
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* @return {number | BigNumber | Fraction | Complex | Unit | Array | Matrix} Rounded value
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*/
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return typed('floor', {
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number: floorNumber.signatures.number,
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'number,number': floorNumber.signatures['number,number'],
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Complex: function (x) {
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return x.floor();
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},
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'Complex, number': function (x, n) {
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return x.floor(n);
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},
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'Complex, BigNumber': function (x, n) {
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return x.floor(n.toNumber());
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},
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BigNumber: function (x) {
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if ((0, _nearlyEqual.nearlyEqual)(x, round(x), config.relTol, config.absTol)) {
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return round(x);
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} else {
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return x.floor();
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}
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},
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'BigNumber, BigNumber': function (x, n) {
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if ((0, _nearlyEqual.nearlyEqual)(x, round(x, n), config.relTol, config.absTol)) {
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return round(x, n);
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} else {
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return x.toDecimalPlaces(n.toNumber(), _decimal.default.ROUND_FLOOR);
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}
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},
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Fraction: function (x) {
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return x.floor();
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},
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'Fraction, number': function (x, n) {
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return x.floor(n);
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},
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'Fraction, BigNumber': function (x, n) {
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return x.floor(n.toNumber());
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},
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'Unit, number, Unit': typed.referToSelf(self => function (x, n, unit) {
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const valueless = x.toNumeric(unit);
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return unit.multiply(self(valueless, n));
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}),
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'Unit, BigNumber, Unit': typed.referToSelf(self => (x, n, unit) => self(x, n.toNumber(), unit)),
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'Array | Matrix, number | BigNumber, Unit': typed.referToSelf(self => (x, n, unit) => {
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// deep map collection, skip zeros since floor(0) = 0
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return (0, _collection.deepMap)(x, value => self(value, n, unit), true);
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}),
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'Array | Matrix | Unit, Unit': typed.referToSelf(self => (x, unit) => self(x, 0, unit)),
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'Array | Matrix': typed.referToSelf(self => x => {
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// deep map collection, skip zeros since floor(0) = 0
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return (0, _collection.deepMap)(x, self, true);
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}),
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'Array, number | BigNumber': typed.referToSelf(self => (x, n) => {
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// deep map collection, skip zeros since ceil(0) = 0
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return (0, _collection.deepMap)(x, i => self(i, n), true);
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}),
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'SparseMatrix, number | BigNumber': typed.referToSelf(self => (x, y) => {
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return matAlgo11xS0s(x, y, self, false);
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}),
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'DenseMatrix, number | BigNumber': typed.referToSelf(self => (x, y) => {
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return matAlgo14xDs(x, y, self, false);
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}),
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'number | Complex | Fraction | BigNumber, Array': typed.referToSelf(self => (x, y) => {
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// use matrix implementation
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return matAlgo14xDs(matrix(y), x, self, true).valueOf();
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}),
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'number | Complex | Fraction | BigNumber, Matrix': typed.referToSelf(self => (x, y) => {
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if (equalScalar(x, 0)) return zeros(y.size(), y.storage());
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if (y.storage() === 'dense') {
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return matAlgo14xDs(y, x, self, true);
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}
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return matAlgo12xSfs(y, x, self, true);
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})
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});
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}); |