Before you start ...

During this tutorial, you will use python and magics++ on a linux workstation.

Here is a list of basic commands you may need to use

Basic unix commands:

• ls : list the files in the current directory
• mkdir my_exercise : create a directory called my_excercise
• cd my_exercise :  go to the directory my_excercise. my_excercise becomes the current directory

Using an editor:

There are several editors available

• vi :
• emacs
• kate
• nedit

Run the python interpretor :

In this tutorial we are expecting you to create a python script using your favourite editor and run python to interpret it. Your system have been set-up already and you can use Magics and python by typing the single command:

• python magics.py 

Visualise your result:

Magics will generate a postscript or a png output.

• gv magics.ps : visualise a postscript file called magics.ps
• xv magics.png : visualise a postscript file called magics.png
• display magics.png : visualise a postscript file called magics.png

First Step - warming up : the "Hello World" example 

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