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12 Topic Pages Found in Mathematics & Statistics and starting with the letter D
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The term data refers to a collection of information. A more detailed definition includes types of data that combine to be the collected information

Data mining

Modern researchers in various fields are confronted by an unprecedented wealth and complexity of data. However, the results available to these

Debreu, Gerard

French-born US economist. He developed mathematical economic models with US economist Kenneth Arrow , and in 1954 they published an epoch-making paper


A number expressed using the decimal number system . Commonly, the term is used for numbers that have fractional parts indicated by a decimal point. A

Decimal system

Most commonly used number system, to the base ten. Decimal numbers do not necessarily contain a decimal point; 563, 5.63, and −563 are all decimal

Open Dedekind, Richard (1831 - 1916)
Dedekind, Richard (1831 - 1916)

German mathematician who made contributions to number theory. In 1872 he introduced the Dedekind cut (which divides a line of infinite length

Open Descartes, René
Descartes, René

( rənā' dākärt' ), Lat. Renatus Cartesius, 1596–1650, French philosopher, mathematician, and scientist, b. La Haye. Descartes' methodology was a major

Open determinant

a polynomial expression that is inherent in the entries of a square matrix . The size n of the square matrix, as determined from the number of entries

Open differential geometry
differential geometry

branch of geometry in which the concepts of the calculus are applied to curves, surfaces, and other geometric entities. The approach in classical


Displacement of bones meeting at a joint. It causes pain, swelling, loss of function, and deformity. It is usually due to an accident, but may be