MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: Re: nesting while function


Hi, You forgot to initialize the value of j

In[1]:=
t = 0; i = 1;
 While[i <= 3,
  j=1;
   While[j <= 2,
     t = t + 1;
     j = j + 1];
   i = i + 1]
t

Out[3]=
6

> marloo3 at mail15.com wrote:
> > Hi
> > t = 0; i = 1; j = 1;
> > While[i <= 3,
> 
> j=1;
> 
> >   While[j <= 2,
> >     t = t + 1;
> >     j = j + 1];
> >   i = i + 1]
> >
> > give the result for t=2 and not 6 as should be
> >
> > but
> > t = 0; Do[
> >          Do[
> >              t = t + 1;
> >               , {j, 2}];
> >   , {i, 3}]
> >
> > give the value of 6 for t
> > is this a wrong behaviour for the "While" function ? or i miss something.
> > thanks
> >
> >


  • Prev by Date: Re: how call a function by same name in 2 different contexts?
  • Next by Date: NSum: badly missed Option
  • Previous by thread: Re: nesting while function
  • Next by thread: Re: nesting while function