I want to ask about these theorems in Matlab, to confirm the requirement that x1, x2 where f(x1) * f(x2) < 0 is there any way to find x1, x2 if i have the function eg. $$f(x) = \tan(x)\frac{(e^{2x} - 1)}{(e^{2x} + 1)} + 1$$ by code. Thanks
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There is an infinite number of solutions. Look at what happens between $x=\frac \pi 2+\epsilon$ and $x=\frac{3 \pi} 2-\epsilon$ – Claude Leibovici Mar 16 '17 at 13:45
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@ClaudeLeibovici i took x1=0 and x2=2 – madrugadas25845 Mar 16 '17 at 14:11