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matlab code takes really long time large matrix

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Gloria on 17 Nov 2020
Closed: MATLAB Answer Bot on 20 Aug 2021
Hi ;
I want to solve forced vibration problem with ODE45. But mass, stiffness, damping matrix are 14*14 and force matrix depends on time and multiple lines have time-dependent forces's been over an hour and still I couldnt see time-displacement graph :( What should I do?
Gloria on 18 Nov 2020
Thank you so much :) Yes ODE15s or ODE23s is working :)

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