gnuplot-info

[Gnuplot-info] syntax problem

[audaculus <max...@gm...>]

I've got a probably quite simple syntax problem:

plotting the function f(x)=1.0/(sqrt(1+(x*10)**2)) gnuplot shows a maximum
for f(0) at about 0.70 and not at 1.0 (how it has to be)

were is the bug?

thx in anticipation!
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Re: [Gnuplot-info] syntax problem

[BBands <bb...@gm...>]

You need to increase the sampling rate.

set sample 1000

help set sample

Best,

     John

On Fri, Jul 15, 2011 at 7:24 AM, audaculus <max...@gm...> wrote:
>
> I've got a probably quite simple syntax problem:
>
> plotting the function f(x)=1.0/(sqrt(1+(x*10)**2)) gnuplot shows a maximum
> for f(0) at about 0.70 and not at 1.0 (how it has to be)
>
> were is the bug?
>
> thx in anticipation!
> --
> View this message in context: http://old.nabble.com/syntax-problem-tp32068228p32068228.html
> Sent from the Gnuplot - User mailing list archive at Nabble.com.
>
>
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-- 
John Bollinger, CFA, CMT
www.BollingerBands.com

If you advance far enough, you arrive at the beginning.

Re: [Gnuplot-info] syntax problem

[Thomas S. <t.s...@fz...>]

the default setting
set samples 100
misses x=0:

set table
plot f(x)

...
-0.30303  0.313377  i
-0.10101  0.703545  i
 0.10101  0.703545  i
 0.30303  0.313377  i
...

a slightly different sampling
set samples 101
includes x=0:

set samples 101
plot f(x)

...
-0.4  0.242536  i
-0.2  0.447214  i
 5.55112e-16  1  i
 0.2  0.447214  i
 0.4  0.242536  i
...


audaculus wrote:
> 
> I've got a probably quite simple syntax problem:
> 
> plotting the function f(x)=1.0/(sqrt(1+(x*10)**2)) gnuplot shows a maximum
> for f(0) at about 0.70 and not at 1.0 (how it has to be)
> 
> were is the bug?
> 
> thx in anticipation!
> 

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Re: [Gnuplot-info] syntax problem

[audaculus <max...@gm...>]

thx to you and to Benjamin (who also helped me solving this problem via email
and the mailing list)....... now it works.
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