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Return the smallest positive normal value capable of being represented by a numeric real type.

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stdlib-js/utils-real-min

About stdlib...

We believe in a future in which the web is a preferred environment for numerical computation. To help realize this future, we've built stdlib. stdlib is a standard library, with an emphasis on numerical and scientific computation, written in JavaScript (and C) for execution in browsers and in Node.js.

The library is fully decomposable, being architected in such a way that you can swap out and mix and match APIs and functionality to cater to your exact preferences and use cases.

When you use stdlib, you can be absolutely certain that you are using the most thorough, rigorous, well-written, studied, documented, tested, measured, and high-quality code out there.

To join us in bringing numerical computing to the web, get started by checking us out onGitHub, and please considerfinancially supporting stdlib. We greatly appreciate your continued support!

realmin

NPM versionBuild StatusCoverage Status

Return the smallest positive normal value capable of being represented by a numeric real type.

Installation

npm install @stdlib/utils-real-min

Alternatively,

  • To load the package in a website via ascript tag without installation and bundlers, use theES Module available on theesm branch (seeREADME).
  • If you are using Deno, visit thedeno branch (seeREADME for usage intructions).
  • For use in Observable, or in browser/node environments, use theUniversal Module Definition (UMD) build available on theumd branch (seeREADME).
  • To use as a general utility for the command line, install the correspondingCLI package globally.

Thebranches.md file summarizes the available branches and displays a diagram illustrating their relationships.

To view installation and usage instructions specific to each branch build, be sure to explicitly navigate to the respective README files on each branch, as linked to above.

Usage

varrealmin=require('@stdlib/utils-real-min');

realmin( dtype )

Returns the smallest positivenormal value capable of being represented by a numericreal type.

varm=realmin('float64');// returns 2.2250738585072014e-308

The following numericreal types are supported:

  • float64: double-precision floating-point numbers
  • float32: single-precision floating-point numbers
  • float16: half-precision floating-point numbers

Examples

varrealmin=require('@stdlib/utils-real-min');varm=realmin('float64');// returns 2.2250738585072014e-308m=realmin('float32');// returns 1.1754943508222875e-38m=realmin('float16');// returns 0.00006103515625

CLI

Installation

To use as a general utility, install the CLI package globally

npm install -g @stdlib/utils-real-min-cli

Usage

Usage: realmin [options] <dtype>Options:  -h,    --help                Print this message.  -V,    --version             Print the package version.

Examples

$ realmin float160.00006103515625

See Also


Notice

This package is part ofstdlib, a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.

For more information on the project, filing bug reports and feature requests, and guidance on how to developstdlib, see the main projectrepository.

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License

SeeLICENSE.

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Copyright © 2016-2025. The StdlibAuthors.

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