Mathematics
Articles about numbers, structures, logic and mathematical concepts.
Chain rule
Chain rule (differential calculus)
Chaos theory
Chess and computers
Chess and Computers: history, technology, and impact
Chess endgame
Chess rating system
Chi (letter)
Chi (Greek letter χ): shape, sound, numeric value and uses
Chi-square distribution
Chiliagon
Chinese postman problem
Chinese postman problem (route inspection problem)
Chinese remainder theorem
Chomsky hierarchy
Chosen-plaintext attack
Church–Turing thesis
Circle
Circle — definition, parts, formulas, properties and uses
Circumference
Circumference: length around a closed curve, especially a circle
Clockwise
Clockwise (direction of rotation)
Closure (computer programming)
Coding theory
Coding theory: structure, history, and applications in communication and storage
Coefficient
Collatz conjecture
Combination
Combination (mathematics)
Combinatorial game theory
Combinatorial optimization
Combinatorial optimization: theory, problems, and methods
Combinatorics
Common year
Common year starting on Saturday
Common year starting on Saturday — calendar characteristics and examples
Common year starting on Sunday
Common year starting on Sunday (calendar pattern)
Common year starting on Thursday
Common year starting on Wednesday
Commutative property
Commutative ring
Comparison of the Imperial and US customary systems
Comparison of the Imperial and U.S. customary measurement systems
Compass (drafting)
Drafting Compass (pair of compasses)
Complementary angles
Complex analysis
Complex number
A complex number pairs a real part and an imaginary part, written a + bi, forming a two-dimensional number system central to algebra, geometry, analysis, physics and engineering.
Complex plane
Complex system
Complexity class
Complexity theory
Computational complexity theory
Composite number
Computability theory
Computability theory: what can and cannot be computed
Computable function
Computation
Computational complexity theory
Computer Algebra System
Computer number format
Computer number formats: binary, octal, hexadecimal, integer and floating point