emaxima: case sensitivity and more



Hi all,

using emaxima I encountered that lower case letters are generally
transformed into capital letters in the TeX output.
Is there a way to prevent this?

Moreover, I recognized that sometimes variables consisting of a letter
and a number, i.e. c1, are represented as C_1 in TeX-output, but this
is not true for any number.
How can I understand that or how can I fix this problem?

In addition, greek letters are as far as I know are converted to their
representative TeX-analogue, i.e. Phi --> \Phi. Is this true for
every greek character?

Any hints or comment are appreciated.

Regards

Klaus