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Last seen: circa un mese fa | Attivo dal 2024

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Domanda

Why is this matlab program not able to solve accurately?
syms E_b I_b omega m2 J pho_b A_b l beta = (omega^2*pho_b*A_b/(E_b*I_b))^(1/4); B=[E_b*I_b*(-beta^3*cos(beta*l)-beta^3*cosh(be...

circa un mese fa | 1 risposta | 0

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Domanda

I want to solve the equation in the picture and use ode45 to solve it, but after running for 5 hours there is still no result, I would like to ask if the program is written wrong or is there any optimization?
%先对方程进行处理，为使用ode45准备 % clc % clear % syms r dx2 rm l varphi dvarphi2 dvarphi1 theta1 theta C1 dv1 Lb C2 dvarphi % syms g C...

2 mesi fa | 1 risposta | 0

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