ysjj-system/node_modules/mathjs/lib/cjs/function/arithmetic/floor.js

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");
Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.createFloorNumber = exports.createFloor = void 0;
var _slicedToArray2 = _interopRequireDefault(require("@babel/runtime/helpers/slicedToArray"));
var _decimal = _interopRequireDefault(require("decimal.js"));
var _factory = require("../../utils/factory.js");
var _collection = require("../../utils/collection.js");
var _number = require("../../utils/number.js");
var _nearlyEqual = require("../../utils/bignumber/nearlyEqual.js");
var _matAlgo11xS0s = require("../../type/matrix/utils/matAlgo11xS0s.js");
var _matAlgo12xSfs = require("../../type/matrix/utils/matAlgo12xSfs.js");
var _matAlgo14xDs = require("../../type/matrix/utils/matAlgo14xDs.js");
var name = 'floor';
var dependencies = ['typed', 'config', 'round', 'matrix', 'equalScalar', 'zeros', 'DenseMatrix'];
var createFloorNumber = /* #__PURE__ */(0, _factory.factory)(name, ['typed', 'config', 'round'], function (_ref) {
  var typed = _ref.typed,
    config = _ref.config,
    round = _ref.round;
  return typed(name, {
    number: function number(x) {
      if ((0, _number.nearlyEqual)(x, round(x), config.epsilon)) {
        return round(x);
      } else {
        return Math.floor(x);
      }
    },
    'number, number': function numberNumber(x, n) {
      if ((0, _number.nearlyEqual)(x, round(x, n), config.epsilon)) {
        return round(x, n);
      } else {
        var _split = "".concat(x, "e").split('e'),
          _split2 = (0, _slicedToArray2["default"])(_split, 2),
          number = _split2[0],
          exponent = _split2[1];
        var result = Math.floor(Number("".concat(number, "e").concat(Number(exponent) + n)));
        var _split3 = "".concat(result, "e").split('e');
        var _split4 = (0, _slicedToArray2["default"])(_split3, 2);
        number = _split4[0];
        exponent = _split4[1];
        return Number("".concat(number, "e").concat(Number(exponent) - n));
      }
    }
  });
});
exports.createFloorNumber = createFloorNumber;
var createFloor = /* #__PURE__ */(0, _factory.factory)(name, dependencies, function (_ref2) {
  var typed = _ref2.typed,
    config = _ref2.config,
    round = _ref2.round,
    matrix = _ref2.matrix,
    equalScalar = _ref2.equalScalar,
    zeros = _ref2.zeros,
    DenseMatrix = _ref2.DenseMatrix;
  var matAlgo11xS0s = (0, _matAlgo11xS0s.createMatAlgo11xS0s)({
    typed: typed,
    equalScalar: equalScalar
  });
  var matAlgo12xSfs = (0, _matAlgo12xSfs.createMatAlgo12xSfs)({
    typed: typed,
    DenseMatrix: DenseMatrix
  });
  var matAlgo14xDs = (0, _matAlgo14xDs.createMatAlgo14xDs)({
    typed: typed
  });
  var floorNumber = createFloorNumber({
    typed: typed,
    config: config,
    round: round
  });
  /**
   * Round a value towards minus infinity.
   * For matrices, the function is evaluated element wise.
   *
   * Syntax:
   *
   *    math.floor(x)
   *    math.floor(x, n)
   *
   * Examples:
   *
   *    math.floor(3.2)              // returns number 3
   *    math.floor(3.8)              // returns number 3
   *    math.floor(-4.2)             // returns number -5
   *    math.floor(-4.7)             // returns number -5
   *
   *    math.floor(3.212, 2)          // returns number 3.21
   *    math.floor(3.288, 2)          // returns number 3.28
   *    math.floor(-4.212, 2)         // returns number -4.22
   *    math.floor(-4.782, 2)         // returns number -4.79
   *
   *    const c = math.complex(3.24, -2.71)
   *    math.floor(c)                 // returns Complex 3 - 3i
   *    math.floor(c, 1)              // returns Complex 3.2 -2.8i
   *
   *    math.floor([3.2, 3.8, -4.7])       // returns Array [3, 3, -5]
   *    math.floor([3.21, 3.82, -4.71], 1)  // returns Array [3.2, 3.8, -4.8]
   *
   *    math.floor(math.tau, [2, 3])  // returns Array [6.28, 6.283]
   *
   *    // Note that floor(array, array) currently not implemented.
   *
   * See also:
   *
   *    ceil, fix, round
   *
   * @param  {number | BigNumber | Fraction | Complex | Array | Matrix} x  Number to be rounded
   * @param  {number | BigNumber | Array} [n=0]                            Number of decimals
   * @return {number | BigNumber | Fraction | Complex | Array | Matrix} Rounded value
   */
  return typed('floor', {
    number: floorNumber.signatures.number,
    'number,number': floorNumber.signatures['number,number'],
    Complex: function Complex(x) {
      return x.floor();
    },
    'Complex, number': function ComplexNumber(x, n) {
      return x.floor(n);
    },
    'Complex, BigNumber': function ComplexBigNumber(x, n) {
      return x.floor(n.toNumber());
    },
    BigNumber: function BigNumber(x) {
      if ((0, _nearlyEqual.nearlyEqual)(x, round(x), config.epsilon)) {
        return round(x);
      } else {
        return x.floor();
      }
    },
    'BigNumber, BigNumber': function BigNumberBigNumber(x, n) {
      if ((0, _nearlyEqual.nearlyEqual)(x, round(x, n), config.epsilon)) {
        return round(x, n);
      } else {
        return x.toDecimalPlaces(n.toNumber(), _decimal["default"].ROUND_FLOOR);
      }
    },
    Fraction: function Fraction(x) {
      return x.floor();
    },
    'Fraction, number': function FractionNumber(x, n) {
      return x.floor(n);
    },
    'Fraction, BigNumber': function FractionBigNumber(x, n) {
      return x.floor(n.toNumber());
    },
    'Array | Matrix': typed.referToSelf(function (self) {
      return function (x) {
        // deep map collection, skip zeros since floor(0) = 0
        return (0, _collection.deepMap)(x, self, true);
      };
    }),
    'Array, number | BigNumber': typed.referToSelf(function (self) {
      return function (x, n) {
        // deep map collection, skip zeros since ceil(0) = 0
        return (0, _collection.deepMap)(x, function (i) {
          return self(i, n);
        }, true);
      };
    }),
    'SparseMatrix, number | BigNumber': typed.referToSelf(function (self) {
      return function (x, y) {
        return matAlgo11xS0s(x, y, self, false);
      };
    }),
    'DenseMatrix, number | BigNumber': typed.referToSelf(function (self) {
      return function (x, y) {
        return matAlgo14xDs(x, y, self, false);
      };
    }),
    'number | Complex | Fraction | BigNumber, Array': typed.referToSelf(function (self) {
      return function (x, y) {
        // use matrix implementation
        return matAlgo14xDs(matrix(y), x, self, true).valueOf();
      };
    }),
    'number | Complex | Fraction | BigNumber, Matrix': typed.referToSelf(function (self) {
      return function (x, y) {
        if (equalScalar(x, 0)) return zeros(y.size(), y.storage());
        if (y.storage() === 'dense') {
          return matAlgo14xDs(y, x, self, true);
        }
        return matAlgo12xSfs(y, x, self, true);
      };
    })
  });
});
exports.createFloor = createFloor;