To obtain the natural frequency of the clamped beam, I need to solve the following equation:
I use the
Solve function to do this. Since this transcendental equation has infinite roots, I prescribe the range of the roots. The code I write is
Solve[Cos[x] Cosh[x] == 1 && 0 < x < 500, x, Reals]
I obtain the roots belonging to
[0,500]. Now I want to prescribe the number of the roots rather than the range of the roots. How can I do this?