simple-squiggle/node_modules/mathjs/lib/esm/function/arithmetic/fix.js

91 lines
3.3 KiB
JavaScript

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