Plot problem.. ?? No sign at all

[Alan G Isaac]

On 7/6/2010 8:05 AM, Ritchy lelis wrote:
>  1 - "import numpy as np
>       import matplotlib.pyplot as plt"
>
>       In what help's me making the call's of the libraries that way?

http://bytebaker.com/2008/07/30/python-namespaces/

>  2 - What's the instruction linspace means/does?

 >>> help(np.linspace)
         Help on function linspace in module numpy.core.function_base:

         linspace(start, stop, num=50, endpoint=True, retstep=False)
             Return evenly spaced numbers over a specified interval.

             Returns `num` evenly spaced samples, calculated over the
             interval [`start`, `stop` ].


>  3 - Last but more important: "V0 = ... #create an array" if I
>  understood, there i'm supposed to introduce the for loop as in my
>  initial example. correct?

It is better to create your arrays without looping,
if possible.  But create it however you wish.
(Note than numpy arrays have a fixed length;
create a Python list if you wish to append to it.)

Cheers,
Alan Isaac