[Tutor] exercise problem

[Roelof Wobben]

> Date: Fri, 27 Aug 2010 12:00:23 -0400
> From: bgailer at gmail.com
> To: rwobben at hotmail.com
> CC: tutor at python.org
> Subject: Re: [Tutor] exercise problem
> 
> I have been reading your posts and responses. I find myself frustrated 
> with your lack of understanding of Python fundamentals and the time and 
> energy others are putting in that seems to help only a little.
> 
> I recommend you take a very basic tutorial, and be sure you understand 
> the basic concepts before tackling what seems too hard for you

 

 

I follow this basic tutorial : http://openbookproject.net/thinkcs/python/english2e/ch09.html

 


> 
> Also I encourage you to take each error message and look up the topic. 
> In this case
> 
> getal1 = getal1 + u[teller,0] + v[teller,0]
> TypeError: list indices must be integers, not tuple
> 
> What does this error tell you?

 

That the list index must be a integer.


> 
> What is a tuple? What is an integer? Where is there a tuple in this 
> expression? What are you trying to do?


What a tuple is i can't tell you. it's in the next chapter.

A integer is a number.

What Im trying to do is that I want all the first numbers of the vectors are added and all the second numbers.

 

So if I have this vector [1.0] [1,1]

I try to add 1 and 1 and after that I try to add 0 and 1 

and put the answer in a new vector.

 

 

> 
> Look up list indexing and see if you can solve it yourself, then return 
> with any questions that arise from this effort.
> 
> The more you do for yourself the faster and better you will learn and we 
> will be more encouraged to help.
> 
> How does this sound to you? Will you give it a try?


Of course I will give it a try. 

 

> 
> -- 
> Bob Gailer
> 919-636-4239
> Chapel Hill NC
> 

 

Roelof


 
 		 	   		  
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