Need help with solve&fsolve with stored equations

[CR Haeger]

Not easy at all I am afraid.

To get equations into solver, it seems you have to either use Home variables only (A,B, C etc) or first define the equation in CAS then save it using Solve.E1:= . For example

   

You can do the same for the other two equations a and b. Unfortunately, Solver will then require you to create user variables before running the solver.

If you go back to CAS, you will then need to delete some or all of the recently created user variables before running solve() or fsolve().

Its a pain and I would avoid the Solver app and stick with CAS solve(), fsolve().