Only guessing because I can't try this until I get home, but when n
reaches the value 2.9999.... (the nearest it'll get to 3.00 because
0.01 is not represented exactly internally [that would need an infinite
number of bits]), then PRINT n will round up to 3, whereas INT(n) will
return the correct answer (2) which needs no rounding and therefore
prints as 2.
Try this:
FOR n=2.953125 TO 3.03125 STEP 0.015625:PRINT n, INT(n)
and see if you get any unexpected results.
Ian.
> -----Original Message-----
> From: CMOUR
> Sent: 18 June 2001 10:34
> To: ql-users
> Cc: CMOUR
> Subject: RE: [ql-users] NEXT in FOR-loop
>
>
> Yes,but what I dont understand is how the "n" value in my
> example can be OK
> when the INT(n) does not ?!
>
> -----Message d'origine-----
> De : Malcolm Lear [mailto:[EMAIL PROTECTED]]
> Envoy� : lundi 18 juin 2001 11:30
> � : [EMAIL PROTECTED]
> Objet : Re: [ql-users] NEXT in FOR-loop
>
>
> Yes rather annoying. I've come across this problem several times. I
> quite often
> add a small value to n solve it. i.e. INT(n+0.00001). I
> assume its got
> something
> to do with internal rounding.
>
>
>
> Claude Mourier 00 wrote:
>
> > As I see a question about FOR/NEXT loops, I have mine:
> > the subsequent peice of code gives me an unexpected result
> > FOR n = 2.95 to 3.05 STEP 0.01 : print n, INT(n)
> > Why ?
> >
> > Claude
> > (I am using QPC2v2.00 and SMSQ/e v2.98)
> >
> >
>
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