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From: db <dieterhansbritz@gmail.com>
Newsgroups: comp.graphics.apps.gnuplot
Subject: Re: Label problem
Date: Sat, 24 Feb 2024 16:55:35 +0100
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Xref: csiph.com comp.graphics.apps.gnuplot:4660

On 24.02.2024 09.17, db wrote:
> On 22.02.2024 09.19, Jörg Buchholz wrote:
>> On 21.02.2024 13:25, db wrote:
>>> On 21.02.2024 07.13, Jörg Buchholz wrote:
>>>> On 20.02.2024 16:08, db wrote:
>>>>> On 20.02.2024 09.01, Jörg Buchholz wrote:
>>>>>> On 19.02.2024 14:11, db wrote:
>>>>>>> On 18.02.2024 23.00, Karl Ratzsch wrote:
>>>>>>>> Symbol fonts? This is the year 2024, use utf8.
>>>>>>>>
>>>>>>>> Karl
>>>>>>>>
>>>>>>>>
>>>>>>>> Am 18.02.2024 um 14:54 schrieb db:
>>>>>>>>> I am trying to get a ylabel like the LaTeX form
>>>>>>>>> $i\sqrt{\tau}$. Without the i it's easy, '{/Symbol \326
>>>>>>>>> \164}' but as soon as introduce the i it goes haywire.
>>>>>>>>> How do get that label? I am plotting into postscript enh
>>>>>>>>> eps.
>>>>>>>>
>>>>>>> Could you expand on that? What should I do in a gnuplot
>>>>>>> script?
>>>>>>
>>>>>> set ylabel "{/:Italic {i \U+221A \U+0305\U+03C4}}"
>>>>>>
>>>>>> That looks similar to the LaTex output.
>>>>>>
>>>>>> Jörg
>>>>> Tried that, no good. I must bemissing something. Here is a
>>>>> mini-example
>>>>>
>>>>> gnuplot << eoi set term postscript enh eps 24 set output
>>>>> 'mini.eps' set xlabel "x" #set ylabel '{/Symbol i \326 \164}'
>>>>> norotate  --- no good #set ylabel '{i /Symbol \326 \164}'
>>>>> norotate  --- no good set ylabel "{/:Italic {i \U+221A
>>>>> \U+0305\U+03C4}}" plot x*sqrt(x) w p pt 7 quit eoi gv mini.eps
>>>>>
>>>>> What am I missing?-- Dieter Britz
>>>>>
>>>> Use term epscairo instead of eps. The problem is to realise the
>>>> "topline" of the square root. So it can be better only use: set
>>>> ylabel "{/:Italic {i \U+221A \U+03C4}}"
>>>>
>>>> Jörg
>>>>
>>>>
>>> That only turns the plot on its side, but still the same garbled y
>>> label.
>>
>> Don't know what the problem on your machine is. Here, tested on WIN10
>> and Linux, the following looks good.
>> WIN and Linux with gnuplot 5.4.8
>>
>> set term epscairo
>> set output 'mini.eps'
>> set xlabel "x"
>> set ylabel "{/:Italic {i \U+221A\U+03C4}}"
>> set arrow 1 from screen 0.0145,0.56 rto screen 0.0,0.025 nohead
>> plot x*sqrt(x) w p pt 7
>> set out
>>
>>
>> Jörg
> That doesn't work either, see the result here
> www.dieterbritz.dk/mini.eps
> 
> Is there any way I can use LaTeX notation?

That might have been a can of worms. I found a solution
though, e.g.

set label '{/Times-Roman i}' at -1,0.28
set label '{/Symbol \326 \164}' at -0.8,0.28

with a bit of fiddling to get them in the right place.
Not elegant but it works.
-- 
Dieter Britz