How to use Module with NSolve?

Questions
,
1

Hi! I want to solve the following problem.

h[x_] := Module[{p, c}, {p, c} /.  Last[NSolve[{e[x] == 0, f[x] == 0}, {p, c}]]]

where e and f are nonlinear equations for p and c.
When I input h[1], the output shows {p$150234, c$150234} .
Is there any mistake in the above usage of Module?

2

Is there any chance that NSolve isn’t finding a solution?

In[1]:= Module[{x}, x /. NSolve[x == 4, x]]
Out[1]= {4.}

In[2]:= Module[{x}, x /. NSolve[x == x + 1, x]]
Out[2]= x$305
3

Hi,

Not sure what you want to use as an argument for h , but here is an example where x is a parameter for some equation:

h[B_] := Module[
  {X}, (* LOCALS *)
  Evaluate[X /. NSolve[X^2 + B X + 1 == 0, X]]
]
h[2]

I.M.

4

I see. Thank you!
The problem is solved already.