📄 eulr2qrot.m
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function qua_vec = eulr2qrot(eul_vect)
phi = eul_vect(1);
theta = eul_vect(2);
psi = eul_vect(3);
Ro = sqrt(power(phi,2) + power(theta,2) + power(psi,2));
if Ro == 0,
qua_vec(1) = 1;
qua_vec(2) = 0;
qua_vec(3) = 0;
qua_vec(4) = 0;
else
qua_vec(1) = cos(Ro/2);
qua_vec(2) = phi*sin(Ro/2)/Ro;
qua_vec(3) = theta*sin(Ro/2)/Ro;
qua_vec(4) = psi*sin(Ro/2)/Ro;
end
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