do not get Greek letters in a plot

To obtain the Greek lambda I wrote the command

text(1.5,-2,texlabel('lambda'))

but it produces just lower case Latin l. What is wrong? My matlab version is 7.11.0.584 (R2010b) on Ubuntu 17.1.

Thanks in advance, K. Veselic.

Answer 1

[the cyclist]

That code produces the greek character for me, in R2016a, on Mac OS X.

[John BG]

isn't there a missing back slash?

[the cyclist]

He's using the texlabel function. It doesn't require the backslash.

[John BG]

it may have to do with missing fonts, in the system, not in MATLAB.

Answer 2

[John BG]

missing '\'

From the function text introductory example

    x = 0:pi/20:2*pi;
    y = sin(x);
    plot(x,y)
    text(pi,0,'\lambda sin(\pi)')

without '\' you don't get Greek characters

Kresimir, would you please be so kind to mark my answer as ACCEPTED ANSWER?

To any other reader, please if you find this answer of any help solving your question,

please click on the thumbs-up vote link,

thanks in advance

John

<mailto:[e-mail] [e-mail]>

Answer 3

[Image Analyst]

There is nothing wrong or missing with the line of code per se. The reason you don't see it is that you're printing it off screen - outside the limits of the axes, which are 0-1 if you haven't set up an axes yet. To fix it, make sure that the axes include the (x,y) location you passed in to text() as the first two arguments. You can do that by calling xlim() and ylim(). Here is the fix:

text(1.5,-2,texlabel('lambda')) % Your original code.
% Set the axes limits so text will now be on screen.
xlim([0, 3]);
ylim([-3, 3]);

[John BG]

Kresimir is using R2010. Just told him to check your off screen answer.

[Image Analyst]

Actually he said he saw a vertical bar. If that is really what he saw, and he saw it in the correct on-screen location, then I think it must be some kind of bug because for me, when it's on screen it's not a vertical bar but a normal looking lambda. But I've seen weird things before like on one guy's screen that I deployed my app to all the text labels were upside down. I told it to change the renderer and that seemed to fix it - like I said, weird! The renderer also changed the colors slightly, like the same 'y' yellow color looked substantially different in the two renderers - I have no idea why.