Mathematics

Dimensionless quantity

Diophantine approximation

Diophantine equation

Diophantine equation: integer solutions to polynomial equations

Diophantus

Dirac delta function

Discrete cosine transform

Discrete mathematics

Disjoint sets

Disjoint sets (mathematics)

Disjunction

Disjunction: logical 'or' (inclusive and exclusive) and biological separation

Displacement vector

Disquisitiones Arithmeticae

Disquisitiones Arithmeticae — Gauss's Foundations of Modern Number Theory

Distribution (mathematics)

Distributive property

Distributive property in algebra

Divergence

Divergence (vector calculus)

Division

Division (mathematics)

Division by two

Division by zero

Divisor

Divisor (number theory)

Dodecagon

Dodecahedron

Dodecahedron: geometry, types, history and uses

Dot product

Double

Double: meanings, uses, and distinctions

Double check

Double check (chess)

Double helix

Dozen

Dozen — the unit of twelve, its history, uses and related measures

Dynamic programming

Dynamical systems theory

Dynamical systems theory: concepts, history, and applications

e (mathematical constant)

Edward Kasner

Efficiency (statistics)

Statistical Efficiency: concepts, measures, and practical implications

Eigenvalues and eigenvectors

Elementary algebra

Ellipse

Ellipse: definition, properties, history, and applications

An ellipse is a planar closed curve (a type of conic) defined by two foci; this article explains its geometry, equations, history, and common uses in astronomy, optics, and enginee

Ellipsoid

A three-dimensional analogue of an ellipse: a closed quadric surface defined by three principal semi-axes, used in geometry, geodesy, physics and data analysis.

Elliptic curve

A smooth projective cubic curve with a group law; central in number theory, algebraic geometry and modern cryptography, usually given by a Weierstrass equation y² = x³ + ax + b.

Empty set

Empty string

Empty string (empty word, ε)

English numerals

English numerals: words, rules, and common forms

Entscheidungsproblem

Entscheidungsproblem: the decision problem in logic and computation

Epigraph (mathematics)

The epigraph of a function is the set of points lying on or above its graph. Central in convex analysis and optimization, it characterizes convexity, lower semicontinuity, and supp

Epsilon

Epsilon (Greek letter ε)

Equality (mathematics)

Equality (mathematics): definition, properties, notation and examples

Equals sign

Equation

Equation (mathematics): definition, types, history and uses

An equation states that two mathematical expressions are equal. This article covers definitions, common types, brief history, methods for solving, and typical applications across m

Equation solving

Equation solving: methods, types, history and applications

Equilateral triangle

Equivalence relation

Equivalence relation (mathematics)