newbie question about the symbol E
- To: mathgroup at smc.vnet.net
- Subject: [mg28310] newbie question about the symbol E
- From: "Martin P. Pos" <posmpxxxx at xxxxhome.nl>
- Date: Mon, 9 Apr 2001 02:58:08 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
I want to declare a function of energy E, say f[E], but mathematica doesn't
allow me to use E as a symbol, because it is reserved for the exponential
constant. In the frontend I use <esc>ee<esc> to enter that exponential
constant, but i want E to be the variable of this function.
Similar, I can declare a constant, e.g.:
Subscript[E, F] := 10
But when I do:
"Clear::ssym : eF is not a symbol or string"
where eF is the exponential constant, subscript F.
I want to enter the following formula:
f[x_] := 1/(1 + E^((Subscript[x, F] - x)/(k*T)))
where E should be the exponential constant and x should be E (capital e)
Is there a way to do what I want, or is it not possible to use E?
Regards, Martin P. Pos
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