| oscillation [´äs·ǝ`lā·shǝn] CONTROL SYSTEMS See <<cycling>> MATHEMATICS 1. The oscillation of a real-valued function on an interval is the difference between its least upper bound and greatest lower bound there. 2. The oscillation of a real-valued function at a point x is the limit of the oscillation of the function on the interval [x - e, x + e] as e approaches 0. Also known as saltus. PHYSICS Any effect that varies periodically back and forth between two values. |