SailClosedLoopNLEqns:
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Nonlinear sail RHS with area control.
Since version 7.
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Form:
xd = SailClosedLoopNLEqns(t,x,kappa0,rho0,z0,G,mode)
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Inputs
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t (1,1) Time
x (6,1) The state vector [rho;z;rhoDot;zDot;theta;thetaDot]
kappa0 (1,1) Sail characteristic acceleration
rho0 (1,1) Target orbit amplitude
z0 (1,1) Target orbit displacements
G (4,1) Control gains
mode (1,1) Control mode, (1) for area and (2) for pitch
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Outputs
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xd (6,1) State derivative
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