What is Superposition?
'''Superposition''' means that several things are combined by putting one on top of the other. More specifically, the term has several meanings: * In [[mathematics]][[Linear equation|, linear equations]] can be combined, and in certain cases, solutions can be found more easily. * In [[physics]], the '''superposition principle''' states that if there are two or more stimuli at a given point in time, the response will be the result of adding all the responses. This only applies to [[Linear system|linear systems]]. Since many systems can be [[Model|modeled]] as linear systems, the principle has many applications in physics and [[engineering]]. * In biology, [[alternative splicing]] means that certain sequences of [[DNA]] can be used for more than one [[protein]]. * In [[geology]] and [[archaeology]], the Law of Superposition states that layers further down are usually older than those more at the top. {{Disambiguation}}