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Singularity may refer to: Wikipedia does not have an article with this exact name. ... Wiktionary (a portmanteau of wiki and dictionary) is a multilingual, Web-based project to create a free content dictionary, available in over 150 languages. ...

In mathematics:

• Essential singularity, a singularity near which a function exhibits extreme behavior
• Isolated singularity, a mathematical singularity that has no other singularities close to it
• Mathematical singularity, a point at which a given mathematical object is not defined
• Movable singularity, a concept in singularity theory
• Rational singularity, a concept in singularity theory
• Removable singularity, a point at which a function is not defined but at which it can be so defined that it is continuous at the singularity
• Singular point of an algebraic variety, a point where an algebraic variety is not locally flat
• Singularity theory, Theory which deals with these concepts

In science: In complex analysis, an essential singularity of a function is a severe singularity near which the function exhibits extreme behavior. ... In complex analysis, a branch of mathematics, an isolated singularity is a singularity which contains no other singularities close to it. ... In mathematics, a singularity is in general a point at which a given mathematical object is not defined, or a point of an exceptional set where it fails to be well-behaved in some particular way, such as differentiability. ... Suppose we have an ordinary differential equation in the complex domain. ... In mathematics, more particularly in the field of algebraic geometry, a scheme has rational singularities, if it is normal, of finite type over a field of characteristic zero, and there exists a proper birational map from a non-singular scheme such that the higher right derived functors of applied to... In complex analysis, a removable singularity of a function is a point at which the function is not defined (a singularity) but at which the function can be defined without creating any problems. ... In mathematics, a singular point of an algebraic variety V is a point P that is special (so, singular), in the geometric sense that V is not locally flat there. ... For non-mathematical singularity theories, see singularity. ...

• Gravitational singularity, a point in spacetime in which gravitational forces cause matter to have an infinite density and zero volume
• Mechanical singularity, a position or configuration of a mechanism or a machine where the subsequent behaviour cannot be predicted
• Prandtl-Glauert singularity, the point at which a sudden drop in air pressure occurs
• Singularity (climate), a weather phenomenon associated with a specific calendar date
• Technological singularity, a theoretical point in the development of a technological civilization

In television: A gravitational singularity (sometimes spacetime singularity) is, approximately, a place where quantities which are used to measure the gravitational field become infinite. ... Mechanical singularity is a position or configuration of a mechanism or a machine where the subsequent behaviour cannot be predicted, or the forces or other physical quantities involved become infinite or undeterministic. ... F/A-18 demonstrating singularity effect The Prandtl-Glauert singularity, at which point a sudden drop in air pressure occurs, is generally accepted as the cause of the visible condensation cloud that often surrounds an airplane traveling at transonic speeds, though there remains some debate. ... A singularity is a weather phenomenon associated with a specific, potentially approximate, calendar date. ... When plotted on a logarithmic graph, 15 separate lists of paradigm shifts for key events in human history show an exponential trend. ...

• "Singularity" (Enterprise episode), a second season episode of Star Trek: Enterprise
• "Singularity" (Stargate SG-1 episode), a first season episode of Stargate SG-1

In other fields: Singularity is the 35th episode (production #209) of the television series Star Trek: Enterprise. ... Episode chronology Singularity is an episode from Season 1 of the science fiction television series Stargate SG-1. ...

• Singularity (Doctor Who audio), a Doctor Who audio drama
• Singularity (operating system), an operating system research project by Microsoft
• Singularity (novel), a novel by Bill DeSmedt published by Per Aspera Press in 2004
• Singularity (Mae album), a 2007 album by Mae

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