Author 
Comment/Response 
Joe W

05/12/12 10:29pm
I've been googling for the past 4 hours but can't figure it out.
How do I plot equations that are defined in terms of other equations which are defined in terms of the variable I want to vary?
For example, I want to plot Power as a function of Length(L), but I have 20 equations and power is defined(P==IV) in terms of other functions.
I solved these equations and stored them with emdomain=solve[ equations={....blah blah}]
I tried Plot[Evaluate[ P/.emdomain], {L, .01, .05}]
It generates an empty plot? Please help!
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