# Expansion of Expression

I am trying to expand out expressions that have several terms similar to

E[-lH] Sinh[l (H - h)]


The Expand command just gives me back the original expression. Even when I do a partial expansion, and then try Expand:

Expand[E[-l H] (E[l (H - h)] - E[-l (H - h)])]


I get back:

E[-H l] (-E[(h - H) l] + E[(-h + H) l])


From ExpandAll:

-E[-H l] E[h l - H l] + E[-H l] E[-h l + H l]


I would like E[-lH] Sinh[l (H - h)] to be expanded as:

E[-h l] - E[(h - 2 H)l]

-

E is a constant, so either use it as E^(-H l)) or use Exp[-H l]. Then you can do :
Simplify[TrigToExp[Exp[-l H] Sinh[l (H - h)]]]

Just use Expand[...] or equivalently ... //Expand. – b.gatessucks Nov 29 '12 at 12:41