[A83] Re: floating point errors?


[Prev][Next][Index][Thread]

[A83] Re: floating point errors?




Only pixels are calculated so, unless some pixel has 1 as value, that 
special case never occures. Also, you'll have to set the graphing mode 
to dots, otherwise, the calc connects two points. By the way, in dot 
mode you can see that it calculates pixel per pixel. There'll be only 
one point per pixel collumn.


SUCKER [Pieter Van Nuffel] wrote:
> To see the problem take the function:
> 
> Y1=(X^3+4X-5)/(X^2-1)
> 
> This is a special function where the value f(1) is not
> valid. So the function just skippes a point. What you
> have to do is to zoom in on that point (1 ; 3.5) a lot.
> You'll see that the function is grabled before and after
> that point, but it shouldn't. Is this a floating point
> error? Or what's happening?
> 
> Perhaps this is a little off-topic, but still...
> It's about programming!




References: