I want to create a STATE SPACE function. I have converted higher order differential into first order differential. but I am not able to form matrix A(state matrix) and matrix B(input/control matrix) from the equations. Please help

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ANIKET KADAM
ANIKET KADAM 2016-3-30
编辑： ANIKET KADAM 2016-3-30
function zp = statespace(t,z);
zp(1) = z(2);
zp(2) = w/m - c*z(2)/m - k*[z(1)*cos(phi(i)) + z(3)*sin(phi(i))].^(3/2);
zp(3) = z(4);
zp(4) = - c*z(4)/m - k*[z(1)*cos(phi(i)) + z(3)*sin(phi(i)) ].^(3/2);

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