...charge]:

I know, I know, I am using the 53#53 symbol for two different things. Well, I said it was the preferred symbol for a scalar field, so you shouldn't be surprised to see it ``recycled'' many times. This won't be the last!

...on.

These are rotten examples, of course --- the first practical criterion for the variables of which any 61#61 is a function is that they should be linearly independent [ i.e. orthogonal ] so that the dependence on one is not all mixed up with the dependence on another!

Jess Brewer
Sun Sep 8 13:40:17 PDT 1996