mirror of
https://github.com/josdejong/mathjs.git
synced 2026-01-25 15:07:57 +00:00
72 lines
2.3 KiB
Markdown
72 lines
2.3 KiB
Markdown
---
|
|
layout: default
|
|
---
|
|
|
|
<!-- Note: This file is automatically generated from source code comments. Changes made in this file will be overridden. -->
|
|
|
|
<h1 id="function-compare">Function compare <a href="#function-compare" title="Permalink">#</a></h1>
|
|
|
|
Compare two values. Returns 1 when x > y, -1 when x < y, and 0 when x == y.
|
|
|
|
x and y are considered equal when the relative difference between x and y
|
|
is smaller than the configured absTol and relTol. The function cannot be used to
|
|
compare values smaller than approximately 2.22e-16.
|
|
|
|
For matrices, the function is evaluated element wise.
|
|
Strings are compared by their numerical value.
|
|
|
|
|
|
<h2 id="syntax">Syntax <a href="#syntax" title="Permalink">#</a></h2>
|
|
|
|
```js
|
|
math.compare(x, y)
|
|
```
|
|
|
|
<h3 id="parameters">Parameters <a href="#parameters" title="Permalink">#</a></h3>
|
|
|
|
Parameter | Type | Description
|
|
--------- | ---- | -----------
|
|
`x` | number | BigNumber | bigint | Fraction | Unit | string | Array | Matrix | First value to compare
|
|
`y` | number | BigNumber | bigint | Fraction | Unit | string | Array | Matrix | Second value to compare
|
|
|
|
<h3 id="returns">Returns <a href="#returns" title="Permalink">#</a></h3>
|
|
|
|
Type | Description
|
|
---- | -----------
|
|
number | BigNumber | bigint | Fraction | Array | Matrix | Returns the result of the comparison: 1 when x > y, -1 when x < y, and 0 when x == y.
|
|
|
|
|
|
<h3 id="throws">Throws <a href="#throws" title="Permalink">#</a></h3>
|
|
|
|
Type | Description
|
|
---- | -----------
|
|
|
|
|
|
<h2 id="examples">Examples <a href="#examples" title="Permalink">#</a></h2>
|
|
|
|
```js
|
|
math.compare(6, 1) // returns 1
|
|
math.compare(2, 3) // returns -1
|
|
math.compare(7, 7) // returns 0
|
|
math.compare('10', '2') // returns 1
|
|
math.compare('1000', '1e3') // returns 0
|
|
|
|
const a = math.unit('5 cm')
|
|
const b = math.unit('40 mm')
|
|
math.compare(a, b) // returns 1
|
|
|
|
math.compare(2, [1, 2, 3]) // returns [1, 0, -1]
|
|
```
|
|
|
|
|
|
<h2 id="see-also">See also <a href="#see-also" title="Permalink">#</a></h2>
|
|
|
|
[equal](equal.html),
|
|
[unequal](unequal.html),
|
|
[smaller](smaller.html),
|
|
[smallerEq](smallerEq.html),
|
|
[larger](larger.html),
|
|
[largerEq](largerEq.html),
|
|
[compareNatural](compareNatural.html),
|
|
[compareText](compareText.html)
|