[pstricks] sqrt function
Mike Chinander
mchinand at midway.uchicago.edu
Sun Mar 14 19:34:25 CET 2004
On Sun, 14 Mar 2004, Richard J. Cattien wrote:
> Hi,
>
> How do i plot the following function.
>
> y = sqrt(x-2)
>
> I always get an error:
> Error: /rangechek in --sqrt--
> Operand stack:
> 0.0 -2
>
> I use:
> \psplot[plotpoints=200]{0}{6}{x 2 sub sqrt}
>
> with add instead of sub everything works fine.
>
> thanks for every answer!
>
It doesn't like a negative number as an operand to sqrt.
sqrt(0-2)=sqrt(-2)
--Mike
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