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.
Some days, I edit them. 1  ODE is the flagship native-speaker desk dictionary from Oxford Dictionaries for British English. It has a much longer headword list than OALD and definitions written to a much higher level; also fewer, shorter examples. 2  OALD is what it sounds like, an English dictionary for advanced learners.