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dθ/dτ=-θ-b*θ^4
我需要通过 ode45 求解这个方程 我尝试了以下方法,但我不确定它是否正确
[t,a]=ode45('fonks', [0 120], 1)
情节(t,a)
function x=fonks(t,a) b=0.5; x=-t+b*t^4;