dx/dt=-a*x+a*y,a>0
dy/dt=r*x-y-x*z,r>0
dz/dt=-b*z+x*y,b>0



dx/dt=-(y+z)
dy/dt=x+a*y
dz/dt=b+z*(x-c)


 


-

     vx=Asinz + Ccosy
     vy=B
sinx + Acosz
     vz=C
siny + Bcosx