Plus and minus sign for an equation
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Rooy
el 18 de Mzo. de 2012
Comentada: Walter Roberson
el 27 de Abr. de 2018
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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Walter Roberson
el 18 de Mzo. de 2012
No.
t1=((xx+yy)/2);
t2=sqrt((((xx+yy)^2)/2)+xy^2);
a=[t1+t2, t1-t2];
Más respuestas (1)
Naresh Virothi
el 27 de Abr. de 2018
how to type plus or minus symbol in matlab
2 comentarios
John D'Errico
el 27 de Abr. de 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
el 27 de Abr. de 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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