# Mathematics Articles

Wednesday, June 19, 2013

### Probability theory

Probability theory is the mathematical study of phenomena characterized by randomness or uncertainty. More precisely, probability is used for modelling situations when the result of an experiment, realized ...  > full story

### Trigonometry

Trigonometry is a branch of mathematics which deals with triangles, particularly triangles in a plane where one angle of the triangle is 90 degrees (right triangles). Triangles on a sphere are also studied, in ...  > full story

### Random variable

A random variable is a mathematical function that maps outcomes of random experiments to numbers. It can be thought of as the numeric result of operating a non-deterministic mechanism or performing a ...  > full story

### Parallelogram

A parallelogram is a four-sided plane figure that has two sets of opposite parallel sides. Every parallelogram is a polygon, and more specifically a quadrilateral. Special cases of a parallelogram are the ...  > full story

## Browse Reference Articles

1 to 10 of 115 articles

• ### Algebraic geometry

Algebraic geometry is a branch of mathematics which, combines abstract algebra, especially commutative algebra, with geometry. It can be seen as the study of solution sets of systems of polynomials. ... > more
• ### Mathematics

Mathematics is often defined as the study of topics such as quantity, structure, space, and change. Mathematics, in nearly every society, is used in fields such as the natural sciences, engineering, ... > more
• ### Calculus

Calculus is a central branch of mathematics. Calculus is built on two major complementary ideas, both of which rely critically on the concept of limits. The first is differential calculus, which is ... > more
• ### Geometry

Geometry arose as the field of knowledge dealing with spatial relationships. Geometry was one of the two fields of pre-modern mathematics, the other being the study of numbers. In modern times, ... > more
• ### Euclidean geometry

Euclidean geometry is a mathematical well-known system attributed to the Greek mathematician Euclid of Alexandria. Euclid's text Elements was the first systematic discussion of geometry. It has been ... > more
• ### Correlation

In probability theory and statistics, correlation, also called correlation coefficient, indicates the strength and direction of a linear relationship between two random variables. In general ... > more
• ### Ellipse

In mathematics, an ellipse is a plane algebraic curve where the sum of the distances from any point on the curve to two fixed points is constant. An ellipse can be drawn with two pins, a loop of ... > more
• ### Mathematical model

A mathematical model is an abstract model that uses mathematical language to describe the behaviour of a system. Mathematical models are used particularly in the natural sciences and engineering ... > more
• ### Mobius strip

The Möbius strip or Möbius band is a surface with only one side and only one boundary component. It has the mathematical property of being non-orientable. It is also a ruled surface. It was ... > more
• ### Hyperbolic geometry

In mathematics, hyperbolic geometry is a non-Euclidean geometry, meaning that the parallel postulate of Euclidean geometry is rejected. The parallel postulate in Euclidean geometry states, for two ... > more

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### Math In The Movies

100 powerful supercomputers perform geometrical, algebraic and calculus-based calculations to animate Pixar's characters. The laws of physics that. ...  > full story

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