S-function.rar_s-function动力学_simulink 动力学_动力学 s_动力系统

function [sys,x0,str,ts] = CAD01_02sfun_kernel(t,x,u,flag) switch flag, case 0, [sys,x0,str,ts]=mdlInitializeSizes; case 1, sys=mdlDerivatives(t,x,u); case 3, sys=mdlOutputs(t,x,u); case 9, sys=[]; end function [sys,x0,str,ts]=mdlInitializeSizes sizes = simsizes; sizes.NumContStates = 2; sizes.NumDiscStates = 0; sizes.NumOutputs = 2; sizes.NumInputs = 0; sizes.DirFeedthrough = 1; sizes.NumSampleTimes = 1; sys = simsizes(sizes); x0 = [1 0]; str = []; ts = [0 0]; function sys=mdlDerivatives(t,x,u) dx(1) = x(2); dx(2) = 1-(1-x(1)*x(1))*x(2) - t*x(1); sys = dx; function sys=mdlOutputs(t,x,u) sys = x;