change the hyphen (-) into minus sign (−, “U+2212”)

Hi,

How can I change the hyphen (-) into minus sign (−, “U+2212”) in Matlab plot!

the figure above generated from matlab which has the defalt minus sign. how can I change -20 -40 and -60 to −20 −40 and −60

[Walter Roberson]

Is this to be done in the context of interpreter Latex, or could it be 'none' or 'tex'?

What is the context in which the hyphen is being generated? For example is this negative signs on tic labels that are being automatically generated as you scroll and pan a plot?

[SALEH ALHUMAID]

I am not following you. I am using Latex to write my article, and I am attaching the matlab figures as eps to Latex. The publisher asked me to change the minus sign in the matlab figure from - to −. I don't know if I should do it through matlab or through latex!

[Omri Davidson]

You can also write the minus sign by using char(8722) with the regular tex interperter.

[Walter Roberson]

@Omri Davidson

True. However, the original poster needs to use Latex, and Latex does not support unicode characters,

Answer 1

[Chunru]

set(groot,'defaultAxesTickLabelInterpreter','latex'); 
plot(randi([-60 60], [20, 1]))
xticks(-60:20:60)
yticklabels(strrep(yticklabels,'-','$-$'));

[SALEH ALHUMAID]

Thank you so much!

[Haiyao Yu]

If you use tex as the format control, you can run the following command alone, note that the first is a hyphen, and the second is a minus sign.

xticklabels(strrep(xticklabels,'-','–'));
yticklabels(strrep(yticklabels,'-','–'));

[Chien-Han Su]

Thanks too!

Answer 2

[Walter Roberson]

plot(randi([-60 60], [20, 1]))
xticks(-60:20:60)

set(gca, 'TickLabelInterpreter', 'latex')
ytickformat('$%g$')

[Stephen23]

+1 that is really neat.

[yiting liu]

May I ask that how to change the hyphen (-) into minus sign (−, “U+2212”) when using "contour"?

[Walter Roberson]

[cmat, h] = contour(....);
clabel(cmat, h);
set(h.TextPrims, 'Interpreter', 'latex');

Have a look at that and see if it does what you need. If not, then it might be necessary to modify the h.TextPrims 'String' properties.

[Zoltán]

This answer is better than the accepted one, because manually calling yticklabels() freezes the labels and they won't update when zooming.

Answer 3

[Changliang Xiong]

I recommend to save the .fig as *.pdf.Then,adobe illustrator could be used to directly modify the sign.

Answer 4

[Jan Kelner]

Is it possible to change the 'hyphen' to 'minus' sign in the heatmap values and colorbar scale values?