Hello Sir, I am writing a equation in matlab. in this equation, i have got some problem related to greek word epsilon.

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glory pachnanda 2014-11-16

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回答： Gustavo 2015-9-21

Actually sir i m searching on google how to write epsilon symbol they shows like \epsilon or epsi or eps etc. but sir any symbol can not run on my matlab, it gives error unexpected matlab expression. sir, here i m writing equation..... plz tell me sir.

I am upload the image of equation.Plz solve my problem..

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Answer 1

dpb 2014-11-16

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编辑：dpb 2014-11-16

http://www.mathworks.com/help/releases/R2014b/matlab/matlab_prog/variable-names.html

Can't do it; use epsilon or something similar instead...

NB: eps (that I typed first time by reflex) is an inbuilt function so don't use it albeit it's not a heavily-used one it's just bad practice in general to alias TMW-supplied functions as that will cause grief eventually....

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Answer 2

Gustavo 2015-9-21

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This is not an epsilon, is an 'element of' symbol. That one is written by

\in .

The symbols can change, depending on the function that you are using, And you have not specified what are you using in your question. If you wanna use epsilon in the text, \epsilon shall be ok, but there are two types of epsilon. matlab just give you one.

If are interested in actually using the name epsilon as a variable name, as it was pointed before you should use something else, it's just a variable name.