Math

This extension contains functions for rendering and computing mathematical expressions.  Related Links: Extension Overview, DekiScript Overview, Extension Demos.

Assembly: mindtouch.deki.services
SID: http://services.mindtouch.com/deki/draft/2007/06/math

This service requires Deki Wiki 1.8.2 or later.

To enable this extension, follow these steps:

1. Go to Service management in the Control Panel of your wiki.
2. Under Add Service, click on Local, and select type Extension.
3. Enter a description and the extension SID: http://services.mindtouch.com/deki/draft/2007/06/math
4. Add any additional configuration settings that are required by the extension (see below).
5. Click on add service.

Configuration:

Microsoft Windows Setup
Install the following applications before using the Math service under Microsoft Windows XP and Windows Server 2003.

1. Install MiKTeX
2. Install ImageMagick
3. Install Ghostscript
4. Set 'latex-path' to point to latex.exe installed by MiKTex (e.g. C:\Program Files\MiKTeX 2.5\miktex\bin\latex.exe)
5. Set 'dvips-path' to ponit to dvips.exe installed by MiKTex (e.g. C:\Program Files\MiKTeX 2.5\miktex\bin\dvips.exe)
6. Set 'imagemagick-path' to convert.exe installed by ImageMagick (e.g. C:\Program Files\ImageMagick\convert.exe)

Debian Setup
Install the following before using the Math service under Debian Linux

1. Execute:
   

   apt-get install tetex-extra gs-gpl imagemagick

   
   
2. Set 'latex-path' to /usr/bin/latex
3. Set 'dvips-path' to /usr/bin/dvips
4. Set 'imagemagick-path' to /usr/bin/convert

Gentoo Setup
Install the following before using the Math service under Gentoo Linux

1. Execute:
   

   emerge -a tetex ghostscript imagemagick

   
   
2. Set 'latex-path' to /usr/bin/latex
3. Set 'dvips-path' to /usr/bin/dvips
4. Set 'imagemagick-path' to /usr/bin/convert

Functions:

1. math.formula
   
2. math.sheet
   

math.formula(formula : str) : uri

Render math formula.

Parameters:

Name	Type	Description
formula	str	Formula in Latex-AMS notation

Remarks:   Refer here for a math guide for Latex.

Samples:

	Output
To embed a simple equation: {{ math.formula("\\alpha^2+\\beta^2*\\gamma^3=1") }}
To embed a more complicated equation: {{ math.formula("\\Re{z} =\\frac{n\\pi \\dfrac{\\theta +\\psi}{2} } {\\left(\\dfrac{\\theta +\\psi}{2}\\right)^2 + \\left( \\dfrac{1}{2} \\log \\left\\lvert\\dfrac{B}{A}\\right\\rvert\\right)^2}") }}

---

math.sheet(sheet : uri, width : num, height : num) : xml

Embed an InstaCalc sheet.

Parameters:

Name	Type	Description
sheet	uri	URI to InstaCalc sheet.
width	num	Optional.  Width of sheet (default: 425)
height	num	Optional.  Height of sheet (default: 300)

Remarks:  Refer here for more information on InstaCalc.

Samples:

	Output
To embed an InstaCalc sheet: {{ math.sheet("http://instacalc.com/?d=&c=MTAwICogNTB8MioyICsgMy80fHxzYWxlcyA9IDMwMCBtaWxsaW9uICsgMTAlfDEwIGluY2hlcyB0byBjbXwxNTAgbGJzIGluIGtnfDUgTUIvc2VjIGluIEdCL2hvdXI&s=sssssss&v=0.9") }}