ordinary differential equations ODE

2021 6 4

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更新时间：2021 6 4

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Please can somebody help wite a fuction containing these ODEs that i would be able to use ODE45 to solve it?

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function D= ODEsys(v)

theta=pi/8;

c=0.72;

g=9.81;

m=80;

s=0.5;

xdot=v*cos(theta);

ydot=v*sin(theta);

thetadot=(-g/v)*cos(theta);

vdot=(-D/m)-g*sin(theta);

end

that is what i have but its wrong i was just hoping other had different insight to me

i Just what to know how to write thr system of ODEs as a function

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