[Tutor] Flow of execution of execution

[Alan Gauld]

On 03/11/14 18:04, William Becerra wrote:

> def printMultiples(n, high):
>      i = 1
>      while i<=high:
>          print n*i, "\t",
>          i = i + 1
>      print

> def multipleTable(high):
>      i = 1
>      while i<=high:
>          printMultiples(i, i)
>          i = i + 1
>      print

> print multipleTable(6)
>
> when i run this code the result i get is
>
> 1
> 2 4
> 3 6 9
> 4 8 12 16
> 5 10 15 20 25
> 6 12 18 24 30 36

> Can someone please explain why does it print a triangular table and not
> a square table like this one:

Because you call print Multiples() from within multipleTable()
Each time the loop executes the value of i increases so each line 
printed gets longer. The first line is printed by printMultiples(1,1)
The second is called with printMultiples(2,2) and so on up to
printMultiples(6,6).

This yields a triangular printout.

> is there any documentation i can read on tables?

Not really, there's no such thing as a table in Python programming, its 
just a structure you create. In practice its usually composed of a list 
of lists.

HTH
-- 
Alan G
Author of the Learn to Program web site
http://www.alan-g.me.uk/
http://www.flickr.com/photos/alangauldphotos