Ex Numerus

Ex Numerus means 'from numbers'. These are tools and notes on extracting knowledge and insight from numbers.

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Saturday, June 5, 2010

How to launch and terminate Matlab from Python

The recommended way to automate Matlab is to use COM API. However, there are situations where COM is not desired. In this case, the followin...

Thursday, May 20, 2010

Linear Time Invariant System – Representations and conversions between.

Using this chart, you can see how to convert among linear system representations. It shows how to convert … a linear continuou...

Sunday, April 25, 2010

PythonXY 2.6.2 + Panda3d 1.7.0 + JModelica 1.1b1 – How to get to work together

If Panda3D 1.7.0 is added to Python using a ‘pth’ file, then JModelica 1.1b1 will load the wrong ‘mscvrt.dll’ and fail to initialize. This p...

An interesting tool - Pyspread

This is an interesting project: Pyspread . It is still a little rough, but shows a lot of promise as a way to use Python. Basically it is a ...

Wednesday, April 21, 2010

How to get Panda3D to work with PythonXY

This note applies to Panda3d ver 1.7.0 and PythonXY ver 2.6.2 on a windows system. Install PythonXY. Install Panda3D, however do ...

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edt: I apply math theory to engineering design and business decision making. I build tools and create methods which speed up and improve decision making. See see my profile for more information.

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