In the following notebook, I have a function f[r] and an expression Tinv2 with parameters a,c,ω,Q,P,M.
Now I have two equations to solve for r to derive ri and rh and then I need to plot TI2 and another one. Using Solve or NSolve shows error that: " neither a list of replacement rules ..." and don't get any plot or sometimes the desired plot. Can anyone tell me where I am doing wrong and how to fix it?
Thank You
