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

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SALEH ALHUMAID
SALEH ALHUMAID 2022-6-17
回答： Jan Kelner 2024-1-30
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
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Omri Davidson
Omri Davidson 2023-1-12
You can also write the minus sign by using char(8722) with the regular tex interperter.
Walter Roberson
Walter Roberson 2023-1-12
@Omri Davidson
True. However, the original poster needs to use Latex, and Latex does not support unicode characters,

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Chunru
Chunru 2022-6-17
Ran in:
set(groot,'defaultAxesTickLabelInterpreter','latex');
plot(randi([-60 60], [20, 1]))
xticks(-60:20:60)
yticklabels(strrep(yticklabels,'-','$-$'));
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Haiyao Yu
Haiyao Yu 2023-1-20
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,'-','–'));

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更多回答（3 个）

Walter Roberson
Walter Roberson 2022-6-17
编辑：Walter Roberson 2023-1-12
plot(randi([-60 60], [20, 1]))
xticks(-60:20:60)
set(gca, 'TickLabelInterpreter', 'latex')
ytickformat('$%g$')
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yiting liu
yiting liu 2022-8-23
May I ask that how to change the hyphen (-) into minus sign (−, “U+2212”) when using "contour"?
Walter Roberson
Walter Roberson 2022-8-23
[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.

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Changliang Xiong
Changliang Xiong 2022-8-23
I recommend to save the .fig as *.pdf.Then,adobe illustrator could be used to directly modify the sign.
Jan Kelner
Jan Kelner 2024-1-30
Is it possible to change the 'hyphen' to 'minus' sign in the heatmap values and colorbar scale values?

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