Cycle

Cycle, cycles, or cyclic may refer to:

Anthropology and social sciences[edit]

Cyclic history, a theory of history
Cyclical theory, a theory of American political history associated with Arthur Schlesinger, Sr.
Social cycle, various cycles in social sciences
- Business cycle, the downward and upward movement of gross domestic product (GDP) around its ostensible, long-term growth trend

Cycle (music), a set of musical pieces that belong together
- Cyclic form, a technique of construction involving multiple sections or movements
- Interval cycle, a collection of pitch classes generated from a sequence of the same interval class
- Song cycle, individually complete songs designed to be performed in a sequence as a unit

Cycles, a render engine for the software Blender
Instruction cycle, the time period during which a computer processes a machine language instruction
Reference cycle, where a software object refers directly or indirectly to itself

Cycle (algebraic topology), a simplicial chain with 0 boundary
Cycle (graph theory), a nontrivial path in a graph from a node to itself
- Cycle graph, a graph that is itself a cycle
- Cycle matroid, a matroid derived from the cycle structure of a graph
Cycle (sequence), a sequence with repeating values
- Cycle detection, the algorithmic problem of detecting repetitions in sequences generated by iterated functions
Cycle, a set equipped with a cyclic order
- Necklace (combinatorics), an equivalence classes of cyclically ordered sequences of symbols modulo certain symmetries
Cyclic (mathematics), a list of mathematics articles with "cyclic" in the title
Cyclic group, a group generated by a single element
Cyclic permutation, a basic permutation (all permutations are products of cycles)

Cycle (angular unit), a unit of plane angle or rotation
Charge cycle, charging and discharging a rechargeable battery
Thermodynamic cycle, a sequence of processes that transfer heat and work into and out of a system
Wave cycle, the repeatable part of a periodic wave
Cyclic, a primary flight control for helicopters
Cyclic compound
Cycle in cycle per second, which is a unit of frequency (rate of repetition)
- A period in alternating current

Cycling, a sport
Cycle (baseball), a single, double, triple, and home run (in any order) by the same player in one game
Cycle, North Carolina, a community in the United States