Sign minus, not hyphen

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

Answer 1

[KSSV]

str = 'UTF−16:2212' ;
figure
title(str)

Answer 2

[Chunru]

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)

Answer 3

[Wilford Lie]

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(...)

^_^

[Walter Roberson]

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.