Mathematics

Cuboid

Cuboid: definition, geometry, formulas, and applications

A cuboid is a six-faced polyhedron whose faces are quadrilaterals; rectangular cuboids (right rectangular prisms) and the cube are important special cases with widely used volume a

Curl

Curl (vector operator)

Currying

Currying: Transforming Multi-argument Functions into Unary Chains

Curve

Curve fitting

Cyclic redundancy check

Cylinder

Cylinder (geometry)

A cylinder is a three-dimensional shape generated by parallel lines around an axis; includes definitions, common formulas for volume and surface area, variants (circular, elliptic,

Cyrillic numerals

D

D (the letter)

Data

David Hilbert

De Moivre's formula

De Moivre's formula: statement, forms, history and applications

Decade

Decade: Definition, Counting Methods, History and Cultural Uses

Decagon

Decagon (ten-sided polygon)

Decasecond

Decasecond (10 seconds)

Decibel

Decibel (dB): definition, calculation, and common uses

Decidability theory

Decidability theory: computability, undecidability and semi-decidable problems

Decimal

Decimal (base ten) numeral system

Decimal separator

Decimal separator: point, comma, and other radix marks

Decision problem

Decision problem (yes–no questions in computation)

Decision theory

Deduction

Deductive reasoning

Degree (angle)

Degree (mathematics)

Degree of a Polynomial (mathematics)

Delta

Delta (Greek letter Δ / δ): forms, history, and common uses

Denominator

Denominator (mathematics)

Derivative (mathematics)

Derivative (mathematics): definition, notation, rules, and applications

Descriptive statistics

Descriptive statistics: summarizing and visualizing data

Determinant

Determinant (linear algebra concept)

A determinant is a scalar value associated with a square matrix that encodes invertibility, volume scaling, orientation, and many algebraic properties. This article explains defini

Deterministic algorithm

Deterministic algorithm: definition, properties, examples and contrasts

Diagonal

Diagonal: definition, properties, counting and applications

Diameter

Diameter (geometry and metric concept)

Dice

Dice: forms, history, uses, and notable properties

Dictionary attack

Difference

Difference quotient

Difference Quotient (average rate of change and approach to the derivative)

Differential

Differential calculus

Differential calculus: rates of change, derivatives, and applications

Differential calculus studies instantaneous rates of change and tangent behavior of functions. It defines derivatives, basic computation rules, higher derivatives, multivariable ex

Differential coefficient

Differential coefficient — historical name for the derivative

Differential cryptanalysis

Differential cryptanalysis: principles, history, and practical impact

Differential equation

Differential equation: definitions, types, history, and applications

Differential geometry

Differential geometry: shapes, curvature, and applications

Differential operator

Differential operators: definitions, orders, linearity, and applications

Differentiation

Differentiation: mathematical, biological, educational, and commercial meanings

Dijkstra's algorithm

Dimension

Dimension: Concepts, Types, and Applications in Mathematics and Physics

Dimensional analysis

Dimensional analysis: units, consistency, and scaling in science