In general, the discriminant is an algebraic expression that gives. information about the roots of a polynomial. In the case of a quadratic equation the discriminant is the part of. the quadratic equation that is under the radical sign.
How to Select Dampers and Louvers. Dampers and louvers are used to control the flow of air in a process system or enclosed area. Dampers are usually motorized or manually-adjustable for flow control. Louvers are often fixed for a constant flow rate.
The main difference is that the lice mainly affects humans, but may also affect pets. Comparatively, fleas mainly affect pets but may also affect humans. Also, the shape of the body differs between the two. Fleas generally have a reddish brown flat body shape as compared to the dark grey oval body shape of a louse.