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missing part in graph

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  missing part in graph Jean Dubois <jeandubois314@gmail.com> - 2014-03-11 05:24 -0700
    Re: missing part in graph Karl <mail.kfr@gmx.net> - 2014-03-11 13:53 +0100
      Re: missing part in graph Jean Dubois <jeandubois314@gmail.com> - 2014-03-11 06:12 -0700

#2337 — missing part in graph

When plotting x^(1/3) as follows, the part in the middle is not shown.
What's the reason and workaround for this?

plot x**(1./3.), -(-x)**(1./3.)

thanks
jean

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#2338

Am 11.03.2014 13:24, schrieb Jean Dubois:
> plot x**(1./3.), -(-x)**(1./3.)

That´s because x=0 is not sampled with the default settings

xrange [-10:10]
set sample 100

plot x**(1./3.) w lp, -(-x)**(1./3.) w lp

If you change the number of samples to an odd number, the curves will
connect.


  Karl

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#2339

Op dinsdag 11 maart 2014 13:53:36 UTC+1 schreef Karl:
> Am 11.03.2014 13:24, schrieb Jean Dubois:
> 
> > plot x**(1./3.), -(-x)**(1./3.)
> 
> 
> 
> That´s because x=0 is not sampled with the default settings
> 
> 
> 
> xrange [-10:10]
> 
> set sample 100
> 
> 
> 
> plot x**(1./3.) w lp, -(-x)**(1./3.) w lp
> 
> 
> 
> If you change the number of samples to an odd number, the curves will
> 
> connect.
> 
> 
> 
> 
> 
>   Karl

thanks, that explains everything

kind regards,
Jean

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