attaches herewith the equation of diffusion that involves roots of equation. i dont have any idea how to solve the roots. thank you for your kind help.
Ilia Anisa
thank you for your answer. so, i should solve roots first. then i can insert beta values in analytical equation right? i am sorry for misunderstanding because i am newbie in this area
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Abolfazl Noorjahan
Yes, you need to solve the roots first (for that you can simply use the fzero function in Matlab). Then you insert the roots in to the equation (8) and sum the terms. But usually suming up to 10 terms suffice (20 is safer).
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Ilia Anisa
thank you for the answer. so, the function can be simplify as f(x)=x*cot(x)-1+L. then i can start the fzero right?
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