Assume that we have some complex algebraic expression, like
Exp[(a t + b s)/w] ( t Exp[ q t] w + q Exp[q s] Exp[-2 s] + a^2 Exp[3 s] + s t + 1 )
Now, this is just an example, the form of the expression is not very important. What is important is that we want to understand which is the exponential dependence on
Exp[s] and Exp[t]
by using some symbols, say es
and et
, as placeholders for Exp[s]
and Exp[t]
.
In practice, I'd like to rearrange it to obtain (formally):
et^(a/w) es^(b/w) ( t et^q w + q es^(q-2) + a^2 es^3 + s t + 1 )
Note that I can not use the substitution /.{t -> Log[et]}
because t
and s
also appear outside the exponential functions.