Label problem

[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.
--
Dieter Britz

[Karl Ratzsch]

Symbol fonts?
This is the year 2024, use utf8.

Karl

[db]

Could you expand on that? What should I do in a gnuplot
script?
--
Dieter Britz

[Hans-Bernhard Bröker]

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.

You forgot to show _how_ you added that 'i'.

Nor is "goes haywire" a very enlightening description of the result.

[Jörg Buchholz]

set ylabel "{/:Italic {i \U+221A \U+0305\U+03C4}}"

That looks similar to the LaTex output.

Jörg

[db]

I tried in several different places, among them
'{i /Symbol \326 \164}', but I didn't want to show them all.
"Haywire" obviously means that the result is garble. I
think that was clear enough.
But I now have the help I was after.
--
Dieter Britz

[db]

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

[Jörg Buchholz]

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

[db]

That only turns the plot on its side, but still the same
garbled y label.
--
Dieter Britz

[Jörg Buchholz]

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

[Klaus Dahlke]

> 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

you may have to set explicitly the encoding to utf:
set encoding utf8

Best
Klaus