I have problems to solve simultaneous equations!
The NSolve command also does not lead to a solution.
Mathematica runs the whole night, but does not give any solutions.
Have anybody an idea?
Thanks for your help!
After some simplifications by hand I get the expression below which one wants to set to 0 to solve for f.
16 Ds f^3 n p W^2 -
k^3 \[Pi]^2 Q Coth[(H k \[Pi])/(4 f W)] Sec[\[CurlyPhi]]
Without numeric values for the various parameters this is unlikely to have a "useful" solution.
Thank you for your help first.
Is there no general solution for this system of equations without using values for the parameters?
Even if I use values for the parameters and set the equation 0, the Solve command does not get the f out of the Coth.
I look carefully at this Plot
to estimate locations of solutions.
I then try
Great, thanks for the quick help!!! :)