?? vdpol.m
字號:
function yprime=vdpol(t,y);%VDPOL(t,y) returns the state derivatives of the Van der Pol equation:%% x'' - mu*(1-x^2)*x' + x = 0 (' = d/dx, '' = d^2/dx^2)%% let y(1) = x and y(2) = x'%% then y(1)' = y(2)% y(2)' = mu*(1-y(1)^2)*y(2) -y(1)global MUyprime=[y(2);MU*(1-y(1)^2)*y(2)-y(1)]; % output must be a column?? 快捷鍵說明
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