Overlap may refer to: * In set theory, an overlap of elements shared between sets is called an

intersection In mathematics, the intersection of two or more objects is another object consisting of everything that is contained in all of the objects simultaneously. For example, in Euclidean geometry, when two lines in a plane are not parallel, their i ...

, as in a Venn diagram. * In music theory, overlap is a synonym for

reinterpretation Musical phrasing is the method by which a musician shapes a sequence of notes in a passage of music to allow expression, much like when speaking English a phrase may be written identically but may be spoken differently, and is named for the in ...

of a chord at the boundary of two musical phrases *

Overlap (railway signalling) An overlap in railway signalling is the length of track beyond a stop signal that is proved to be clear of vehicles in the controls of the previous signal, as a safety margin. Overview Enough braking distance is provided to allow a train to co ...

, the length of track beyond a stop signal that is proved to be clear of obstructions as a safety margin *

Overlap (road) A concurrency in a road network is an instance of one physical roadway bearing two or more different route numbers. When two roadways share the same right-of-way, it is sometimes called a common section or commons. Other terminology for a concurre ...

, a place where multiple road numbers overlap *

Overlap (term rewriting) In mathematics, computer science and logic, overlap, as a property of the reduction rules in term rewriting system, describes a situation where a number of different reduction rules specify potentially contradictory ways of reducing a reducible exp ...

, in mathematics, computer science, and logic, a property of the reduction rules in term rewriting systems *

Overlap add Overlap may refer to: * In set theory, an overlap of elements shared between sets is called an intersection (set theory), intersection, as in a Venn diagram. * In music theory, overlap is a synonym for reinterpretation of a chord at the boundary o ...

, an efficient convolution method using FFT *

Overlap coefficient The overlap coefficient, or Szymkiewicz–Simpson coefficient, is a similarity measure that measures the overlap between two finite sets. It is related to the Jaccard index and is defined as the size of the intersection divided by the smaller of th ...

, a similarity measure between sets *

Orbital overlap In chemical bonds, an orbital overlap is the concentration of orbitals on adjacent atoms in the same regions of space. Orbital overlap can lead to bond formation. Linus Pauling explained the importance of orbital overlap in the molecular bond ang ...

, important concept in quantum mechanics describing a type of orbital interaction that affects bond strength Overlapping can refer to: * "Reaching over", term in Schenkerian theory, see Schenkerian analysis#Lines between voices, reaching over

See also