Plus and minus sign for an equation
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I need the plus and minus sign before the square root function, am I doing it right?
a=((xx+yy)/2)+sqrt((((xx+yy)^2)/2)+xy^2);
a=[a,-a];
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More Answers (1)
Naresh Virothi
on 27 Apr 2018
how to type plus or minus symbol in matlab
2 Comments
John D'Errico
on 27 Apr 2018
Please don't add an answer just to ask a question.
And there is no plus OR minus symbol in MATLAB, that is, a symbol that indicates EITHER plus or minus.
Unless of course you just mean a string.
'+/-'
ans =
'+/-'
Walter Roberson
on 27 Apr 2018
>> char(177)
ans =
'±'
However, this has no significance to equations and will be rejected as an error in source code except in comments or character vectors or string objects.
If you need this for labels, then, for example,
text(0.5,0.5,'$\pm$','interpreter','latex')
If you need the minus on top and the plus underneath then \mp
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