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This plugin enables dynamic LaTeX rendering of complex math expressions.

easy_latex #

The easy_latex allows developers to easily incorporate LaTeX elements within their Flutter apps. The rendering of LaTeX is handled natively in Dart, ensuring a rapid and efficient display without relying on HTML conversions.

Live Rendering Demo #

Check out the live rendering to see the plugin in action.

Widgets #

Latex() #

The Latex() widget enables the rendering of standalone LaTeX strings.

locale: The Latex() widget includes the locale parameter, allowing you to adapt the number formatting to different languages. For example, setting locale to 'de' will display numbers like 3.14159 as 3,14159, matching the standard German formatting.

import 'package:easy_latex/easy_latex.dart';

Latex(
  r'x_{1,2} = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a} \\ \pi = 3.14159... ',
  fontSize: 24,
  locale: 'en',
);

LText() #

The LText() widget allows you to integrate Markdown and LaTeX into your text, enabling both rich formatting and mathematical expressions.

Supported Markdown commands: LText() supports the certain Markdown to style the text.

  • **bold**
  • *italic*
  • `code`
  • \(Latex\)

latexLocale: The LText() widget includes the locale parameter, allowing you to adapt the number ' 'formatting to different languages. For example, setting locale to 'de' will display numbers ' 'like 3.14159 as 3,14159, matching the standard German formatting.

import 'package:easy_latex/easy_latex.dart';

LText(
  r'This is **bold text**, this is *italic text*, '
  r'this is `code`. The value of \(\pi\) is \(3.14159...\) '
  r'and the value of \(\sqrt{2}\) is \(1.41421...\)',
  fontSize: 24,
  latexLocale: 'en',
);

LatexSpan() #

The LatexSpan() widget facilitates the embedding of LaTeX code within RichText().

Attention: The LatexSpan() widget does not inherit fontSize and color (font color) from the parent TextSpan. These attributes must be explicitly defined via the style attribute for each LatexSpan.

import 'package:easy_latex/easy_latex.dart';

RichText(
  text: TextSpan(
    style: MTextStyles.largeText,
    children: [
      const TextSpan(text: 'The value of '),
      LatexSpan(text: r'\pi', style: const TextStyle(fontSize: 16)),
      const TextSpan(text: ' is '),
      LatexSpan(text: r'3.14159...', style: const TextStyle(fontSize: 16)),
      const TextSpan(text: ' and the value of '),
      LatexSpan(text: r'\sqrt{2}', style: const TextStyle(fontSize: 16)),
      const TextSpan(text: ' is '),
      LatexSpan(text: r'1.41421...', style: const TextStyle(fontSize: 16)),
    ],
  ),
);

Unsupported LaTeX Commands #

We know some features you might need are missing right now. We're actively working to support these in upcoming releases. Currently, the following commands are not available:

  • Fonts: \mathit{}, \mathsf{}
  • Table: \begin{tabular}, \end{tabular}, \multicolumn, \multirow, \hline, \cline
  • Array: \begin{array}, \end{array}
  • Matrix: \begin{vmatrix}, \end{vmatrix}, \begin{Vmatrix}, \end{Vmatrix}, \begin{smallmatrix}, \end{smallmatrix}
  • Align: \begin{align}, \end{align}, \begin{alignat}, \end{alignat}
  • Underset, overset: \underset{}, \overset{}, \stackrel{}, \xrightarrow{}, \xleftarrow{}
  • Phantom: \phantom{}, \hphantom{}, \vphantom{}
  • Apostrophes: \acute, \grave, \breve, \check
  • Apostrophes: \acute, \grave, \breve, \check
  • Nolimits, limits: \sum\nolimits, \prod\nolimits, \int\limits, \sideset{}
  • Not, cancel: \!, \not, \cancel{}, \bcancel{}, \xcancel{}, \cancelto{}
  • Left, right: \left|, \right|, \left., \right., \left\rangle, \right\rangle
  • bigl, Bigl: \bigl, \Bigl, \biggl, \Biggl, \bigr, \Bigr, \biggr, \Biggr
  • dfrac, dbinom: \dfrac{}, \dbinom{}{}, \tbinom{}{}
  • Other commands: \atop, \varliminf, \varlimsup, \longdiv

Fonts and Licensing #

The fonts included in the lib/fonts folder of this plugin originate from KaTeX, a LaTeX typesetting library. These fonts have been adjusted for optimal integration and use within this plugin. The fonts are licensed under the MIT License, a copy of which is included in the fonts/LICENSE file. For more details, please refer to this file.

License #

This plugin is distributed under the BSD License. The full license text is included in the LICENSE file located in the root directory of this project.

Contact #

For any questions or issues, please open an issue on the GitHub repository, or contact us directly at [dev@miranda.works].

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Publisher

verified publishermiranda.works

This plugin enables dynamic LaTeX rendering of complex math expressions.

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Documentation

API reference

License

BSD-3-Clause (license)

Dependencies

flutter, intl

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