> For the complete documentation index, see [llms.txt](https://nelson-9.gitbook.io/nelson/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://nelson-9.gitbook.io/nelson/markdown/en/double.md).

# Double

The Double Type module provides tools for handling double-precision numeric values in Nelson.

It enables conversion to double precision and offers access to key numeric limits, supporting high-accuracy computations and reliable handling of large or small floating-point numbers in mathematical and scientific applications.

## Functions

* [double](/nelson/markdown/en/double/double.md) - Converts a variable to double precision type.
* [flintmax](/nelson/markdown/en/double/flintmax.md) - Largest consecutive integer in floating-point format.
* [realmax](/nelson/markdown/en/double/realmax.md) - Largest positive floating-point number.
* [realmin](/nelson/markdown/en/double/realmin.md) - Smallest positive floating-point number.