Displaying Math Formulas

[Alexander Ferling]

I would like to generate mathematical expressions and afterwards display them in my app

The problem is: n√(x*3) is not looking good!

I can format it as html, but as far as i can see, things like mathml are

not supported by app inventor.

-> Is there a possibility to format mathematical expressions in a nice way?

[Juan Antonio]

One possibility is to present the expression as an image.

http://mathcast.findmysoft.com/

[SteveJG]

Here is a way to deal with subscripts and superscripts https://groups.google.com/forum/#!searchin/mitappinventortest/subscript%7Csort:date/mitappinventortest/UZ1olWEzLS0/2H6g70DmDQAJ  

Other than using images, you are out of luck.  App Inventor 2 does not have a math font.

Regards,

Steve

[Abraham Getzler]

This article beats the topic to death ...

http://jkorpela.fi/math/

ABG

[TimAI2]

Also, for fractions

https://groups.google.com/forum/#!starred/mitappinventortest/kSW7-MHQ1gY

[Juan Antonio]

Another way is with JavaScript and JqMath library:

https://mathscribe.com/author/jqmath.html

<link rel="stylesheet" href="file:///mnt/sdcard/AppInventor/assets/jqmath-0.4.3.css">
<script src="file:///mnt/sdcard/AppInventor/assets/jquery-1.4.3.min.js"></script>
<script src="file:///mnt/sdcard/AppInventor/assets/jqmath-etc-0.4.6.min.js" charset="utf-8"></script>

Build:

<link rel="stylesheet" href="file:///android_asset/jqmath-0.4.3.css">

<script src="file:///android_asset/jquery-1.4.3.min.js"></script>

<script src="file:///android_asset/jqmath-etc-0.4.6.min.js" charset="utf-8"></script> 

 

Regards,

Juan Antonio Villalpando

http://kio4.com/appinventor/167D_javascript_formulas.htm

[Alexander Ferling]

Thank you, Juan,

JqMath seems to fulfill my needs very well. I like, that it is lightweight!

Before, I was fighting with MathJax. There the problem is, that you have to use online resources.

If you want to build an offline-app, than you habe to implement a 33MB package, which is too much I think.

Even if the my problem is solved -> Are lightweight packages of MathJax available?

[Juan Antonio]

From https://mathscribe.com/author/jqmath.html:

jqMath is free, using the same open source license as jQuery, the world’s most popular JavaScript library. 

We also gratefully adopt jQuery’s “write less, do more” philosophy.

To use jqMath on your site, download jqMath, and open the included COPY-ME.html file as UTF-8 in a text editor.

I only use jqmath-0.4.3.css, jquery-1.4.3.min.js and jqmath-etc-0.4.6.min.js

[Abraham Getzler]

(added to Math section of FAQ)

https://groups.google.com/forum/#!msg/mitappinventortest/wqJin0qO8M0/8xUafdROAgAJ

ABG