Hi all,
I have the following expression,
+k*K[D]-(Typesetting[delayDotProduct](b, m[1], true)+Typesetting[delayDotProduct](b, m[2], true)+K[D]*m[2])*k*K[P]/(Typesetting[delayDotProduct](b, K[D], true)+k*m[1]+k*m[2]+K[P]*m[2]-m[1]*m[2]*(Typesetting[delayDotProduct](b, K[P], true)+k*K[D])/(Typesetting[delayDotProduct](b, m[1], true)+Typesetting[delayDotProduct](b, m[2], true)+K[D]*m[2]))](http://www.mapleprimes.com/MapleImage.ashx?f=2ded134554ca8dd4f9142ba2a7802efc.gif)
where K and K_P are the controller gains, k is the stiffness, b is the damper, m1 and m2 are masses.
How can I find the condition on variables such that the numerator of this expression is greater that zero?
The conditions should appear as inequalities.
Download Routh-Hurwitz_stability.mw