Based on this question,
Does it means I need to find the five smallest roots on the positive $x$ axis?
What interval would these roots lie on?
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The question only asks you to find one positive solution of $x=\tan{x}$. – saulspatz Apr 06 '20 at 17:05
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Question (a) asks about $x = \tan x$ (find smallest positive zero) and question (b) asks about a certain Bessel function you're given computer code for (find the 5 smallest zeros). There are lots of intervals these roots lie in, one of which is $(0,\infty),$ although I suspect a closer fitting interval is desired. – Dave L. Renfro Apr 06 '20 at 17:29
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Maybe some network problems make me can not open your website. This is a transcendental equation. I try to solve this problem by WolframAlpha, here is the answer https://www.wolframalpha.com/input/?i=x%3Dtanx
I think it is not easy to find the specific roots. If you find some interesting ideas please let me know.
Deemo
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