Oscillation of a sequence (shown in blue) is the difference between the limit superior and limit inferior of the sequence. In mathematics, the oscillation of a function or a sequence is a number that quantifies how much a sequence or function varies between its extreme values as it approaches infinity or a point.
Herbert is a mild form of abuse meaning a silly, or dim-witted person. The origin of this term seems to be that it was derived from the name Herbert, which meant bright.. It was used in the very direct opposite, to mean dumb.
Herberts may appear as though they're very nice and innocent, but tend to contain a dark deviant side to them. They usually don't like following certain rules & will sometimes challenge them. Though they have good control of their deviance when intoxicated they usually tend to let it out.