flutter_tex 0.0.16

A Flutter package to render LaTeX with full HTML support.

Flutter TeX

A Flutter Package to render Mathematics, Physics and Chemistry Equations based on LaTeX with full HTML support using webview_flutter plugin . This is based on mini-mathjax a simplified version of MathJax a JavaScript library.

Use this package as a library

1: Add this to your package's pubspec.yaml file:

dependencies:
    flutter_tex: ^0.0.15

2: You can install packages from the command line:

$ flutter packages get

Alternatively, your editor might support flutter packages get. Check the docs for your editor to learn more.

3: Now in your Dart code, you can use:

import 'package:flutter_tex/flutter_tex.dart';

Example

import 'package:flutter/material.dart';
import 'package:flutter_tex/flutter_tex.dart';

main() async {
runApp(FlutterTeX());
}

class FlutterTeX extends StatefulWidget {
@override
_FlutterTeXState createState() => _FlutterTeXState();
}

class _FlutterTeXState extends State<FlutterTeX> {
  String teX = Uri.encodeComponent(r"""

  <p>

    A simple Example to render \( \rm\\TeX \) in flutter<br>

    <style>
      .card {
        box-shadow: 0 4px 8px 0 rgba(0, 0, 0, 0.2);
        transition: 0.3s;
        width: 40%;
      }

      .card:hover {
        box-shadow: 0 8px 16px 0 rgba(0, 0, 0, 0.2);
      }

      .container {
        padding: 2px 16px;
      }
    </style>
    <div class="card">
      <div class="container">
        <p>
          \begin{align}
          \dot{x} & = \sigma(y-x) \\
          \dot{y} & = \rho x - y - xz \\
          \dot{z} & = -\beta z + xy
          \end{align}
        </p>
      </div>
    </div>

    <br>
    <br>

    When \(a \ne 0 \), there are two solutions to \(ax^2 + bx + c = 0\) and they are

    $$x = {-b \pm \sqrt{b^2-4ac} \over 2a}.$$<br>

    $$ \oint_C {E \cdot d\ell = - \frac{d}{{dt}}} \int_S {B_n dA} $$<br>

    Bohr Radius

    \( a_0 = \frac{{\hbar ^2 }}{{m_e ke^2 }} \)<br>

    Relationship between Energy and Principal Quantum Number

    \( E_n = - R_H \left( {\frac{1}{{n^2 }}} \right) = \frac{{ - 2.178 \times 10^{ - 18} }}{{n^2 }}joule \)<br><br>

    $$\ce{CO2 + C -> 2 CO}$$ <br><br>
 
    $$\ce{Hg^2+ ->[I-] HgI2 ->[I-] [Hg^{II}I4]^2-}$$ <br><br>

    $$\ce{x Na(NH4)HPO4 ->[\Delta] (NaPO3)_x + x NH3 ^ + x H2O}$$ <br><br>

  </p>
  """);

 @override
 Widget build(BuildContext context) {
   return MaterialApp(
     home: Scaffold(
       appBar: AppBar(
         title: Text("Flutter TeX Example"),
       ),
       body: TeXView(
         teXHTML: teX,
       ),
     ),
   );
 }
}

Screenshots