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Question: Can i define a variable with a letter as an exponent?

Question:Can i define a variable with a letter as an exponent?

rossen 0 Maple
December 14 2012
0

Is it possible to define a variable and using a superscribt in the variable name?

Another question: Is it possible to define a variable with using a subcribt of 2 thetas besides each other?

if i write sigma[rr]:= it has no problem, but if i write sigma[thetatheta] then it only writes thetatheta as the subscribt and not the 2 symbols besides each other. Is there a way to fix this?

see picture for clarification:

http://imgur.com/oc6XM

 

 

I know that that i could just define my variable differently, but it would be nice to be able to do it right.
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