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Sign minus, not hyphen

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Federico
Federico 2022-6-15
评论： Walter Roberson 2023-11-2
Hello,
I must replace the hyphen - with the minus sign in figures, obtained with the plot command.
It should be − (UTF-16: 2212), not -.
How can I set it in the plot command?
Thank you

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回答（3 个）

KSSV
KSSV 2022-6-15
Ran in:
str = 'UTF−16:2212' ;
figure
title(str)
Chunru
Chunru 2022-6-15
编辑：Chunru 2022-6-15
Ran in:
c1 = '−'; % (UTF-16: 2212), not -.
c2 = '-';
s1 = "both − and -"
s1 = "both − and -"
s2 = strrep(s1, c1, c2)
s2 = "both - and -"
contains(s1, c1)
ans = logical
1
contains(s2, c1)
ans = logical
0
subplot(121); title(s1)
subplot(122); title(s2)
Wilford Lie
Wilford Lie 2023-11-2
编辑：Walter Roberson 2023-11-2
If the above suggestions do not work, try the followings:
neg = char( hex2dec('2212') ); % HTML UTF-8 heximal code for negative sign
mstr = strcat("UTF", neg, "8: 2212"); % or whatever strng you want
title(mstr); % or annotation(...)
^_^
  1 个评论
Walter Roberson
Walter Roberson 2023-11-2
Ran in:
mstr1 = "UTF" + char(0x2212) + "8: 2212"
mstr1 = "UTF−8: 2212"
mstr2 = compose("UTF%c8: 2212", 0x2212)
mstr2 = "UTF−8: 2212"
mstr3 = compose("UTF\210228: 2212")
mstr3 = "UTF−8: 2212"
Unfortunately you cannot use a plain \x2212 in this circumstances, because \x sequences are variable length and there is no termination character, so there is no way to tell it to stop parsing between the \x2212 and the 8 that follows.

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