2025-09-05 10:41:44 +02:00

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<h1 id="function-bignumber">Function bignumber <a href="#function-bignumber" title="Permalink">#</a></h1>
Create a BigNumber, which can store numbers with arbitrary precision.
When a matrix is provided, all elements will be converted to BigNumber.
<h2 id="syntax">Syntax <a href="#syntax" title="Permalink">#</a></h2>
```js
math.bignumber(x)
```
<h3 id="parameters">Parameters <a href="#parameters" title="Permalink">#</a></h3>
Parameter | Type | Description
--------- | ---- | -----------
`value` | number &#124; string &#124; Fraction &#124; BigNumber &#124; bigint &#124; Array &#124; Matrix &#124; boolean &#124; null | Value for the big number, 0 by default.
<h3 id="returns">Returns <a href="#returns" title="Permalink">#</a></h3>
Type | Description
---- | -----------
BigNumber | The created bignumber
<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
0.1 + 0.2 // returns number 0.30000000000000004
math.bignumber(0.1) + math.bignumber(0.2) // returns BigNumber 0.3
7.2e500 // returns number Infinity
math.bignumber('7.2e500') // returns BigNumber 7.2e500
```
<h2 id="see-also">See also <a href="#see-also" title="Permalink">#</a></h2>
[number](number.html),
[bigint](bigint.html),
[boolean](boolean.html),
[complex](complex.html),
[index](index.html),
[matrix](matrix.html),
[string](string.html),
[unit](unit.html)