Say I have a function h(x), so that:
g(x) < h(x) < f(x) or f(x) < h(x) < g(x)
How can I find the zeros of h(x) without knowing h(x)? I mean, numerically.
I know h(x) has 3 zeros. But I only know the intervals due to f(x) and g(x) . Is the median of this intervals the best approximation to h(x)=0 ?
By the way, I'm using Wolfram Mathematica.

