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.
Product Overview. The Rain Master 10 ft. Vinyl Gutter is lightweight and easy to install. The high-capacity gutter channels and redirects rainwater to help prevent garden erosion and foundation damage. It is engineered to withstand harsh weather conditions. The vinyl material resists rusting and corrosion. The gutter is maintenance free and cleans with a hose.