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From: Learn By on 14 Jul 2010 22:23
http://learnbyexamples.org

1.1. First session
1.1.1. Let’s run the python interpreter
Python 2.4.2 (#1, Dec 20 2005, 16:25:40)
[GCC 4.0.0 (Apple Computer, Inc. build 5026)] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> 1 + 5
6
>>> 2 * 5
10
>>> 1 / 2
0

Is it the right answer?

>>> float(1 / 2)
0.0
>>> 1 / 2.0
0.5
>>> float(1)/2
0.5

>>> 'aaa'
'aaa'
>>> len('aaa')
3

What happened?

>>> len('aaa') + len('ttt')
6
>>> len('aaa') + len('ttt') + 1
7
>>> 'aaa' + 'ttt'
'aaattt'
>>> 'aaa' + 5
Traceback (most recent call last):
File "<stdin>", line 1, in ?
TypeError: cannot concatenate 'str' and 'int' objects

What does the error message mean?
'str' objects are character strings ('aaa' is a string of characters). 'int' objects are integer.

You can check what the values you manipulate are, or, in programming
languages parlance, what their type is:

>>> type(1)
<type 'int'>
>>> type('1')
<type 'str'>
>>> type(1.0)
<type 'float'>

http://learnbyexamples.org/python/python-tutorial/python-tutorial-1-introduction.html
From: per isakson on 14 Jul 2010 23:04
"Learn By " <learnbyexamples.org(a)gmail.com> wrote in message <i1lrea$775$1(a)fred.mathworks.com>...
> http://learnbyexamples.org
>

There are some Malab stuff here:

http://learnbyexamples.org/?s=matlab

/ per
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