Solving equations by calling a function

I have a function A=B*C+D, here B,C,D are all different functions (say it Equation 1)
For B, the equation is B*tanh(B)=E*F (say it Equation 2)
Now i want to extract B from this equation and use it in Equation 1. For me the problem is B is not defined explicity, is there any way to extract B and use it in equation 1.

 采纳的回答

function B=eqnB(E,F)
fun=@(b)b*tanh(b)-E*F;
B=fsolve(fun,1);
end

3 个评论

Thanks for the ready reply @David Hill. In the first line you mentioned eqnB, is it just name of function of any comatlab command?
You have to name your function something. What do you want to name it?

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