hi(adsbygoogle = window.adsbygoogle || []).push({});

i want to sum over two indices i and j . the elemet that i must sum is (x^(i,j))-i

that is x has superscript i,j and subscript i.

but in mathematica it gives me error.

here is the notebook :

http://www.mediafire.com/?novtz7t0liu9u78 [Broken]

thanks (:

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Problem with superscript and subscript in mathematica

**Physics Forums | Science Articles, Homework Help, Discussion**