Dumb python questions

[Joal Heagney]

Paul Rubin wrote:

> Here's another dumb question, about the for loop: if I want to add
> up the first 100 numbers in the naive way, am I really supposed to say
> 
>    sum = 0
>    for i in range(101) :
>      sum = sum + i
> 

Out of curiosity, is there a reason (e.g. curiosity on your part?)
you're not using:

N = 100
sum = N*(N+1)/2

which returns the sum of the first 100 integers much more quickly?
-- 
      Joal Heagney is: _____           _____
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