Discover common math words starting with the letter C to enhance your mathematical vocabulary and understanding.

- Coefficient – A numerical or constant factor in an algebraic term.
- Calculus – A branch of mathematics involving derivatives and integrals.
- Chord – A straight line connecting two points on a curve.
- Circle – A round plane figure whose boundary is equidistant from the center.
- Circumference – The perimeter or distance around a circle.
- Clustering – Grouping of data points in a cluster.
- Collinear – Lying on the same straight line.
- Common Denominator – A shared multiple of the denominators of two or more fractions.
- Commutative – A property where the order of numbers does not change the result (e.g., addition).
- Complementary Angles – Two angles that add up to 90 degrees.
- Complex Number – A number consisting of a real and an imaginary part.
- Composite Number – A number with more than two factors.
- Compound Interest – Interest calculated on both the initial principal and the accumulated interest.
- Concave – Curved inward.
- Concentric – Circles or spheres that share the same center.
**Cone – A three-**dimensional shape with a circular base and a single apex.- Congruent – Figures or shapes that are identical in form and size.
- Constant – A fixed value that does not change.
- Coordinate – A set of values that show an exact position.
- Correlation – A measure of the relationship between two variables.
- Cosine – A trigonometric function related to the adjacent side and hypotenuse of a right triangle.
- Coefficient of Variation – A measure of relative variability.
- Cotangent – The reciprocal of the tangent function in trigonometry.
- Covariance – A measure of how much two variables change together.
- Cramer’s Rule – A theorem used to solve systems of linear equations.
**Cube – A three-**dimensional shape with six equal square faces.- Cube Root – A number that when multiplied by itself three times gives the original number.
- Curvature – The amount by which a curve deviates from being a straight line.
- Curve – A smoothly flowing continuous line or surface that differs from a straight line.
- Cylindrical – Having the shape of a cylinder.
- Canonical Form – A standard way of presenting an equation.
- Convergence – The property of approaching a limit as a variable approaches a point.
- Convex – Curved outward.
- Congruence – The quality or state of matching exactly.
- Concordance – Agreement or harmony between data sets.
- Condition Number – A measure of the sensitivity of a function’s output to its input.
- Convolution – A mathematical operation on two functions producing a third function.
- Cosecant – The reciprocal of the sine function in trigonometry.
- Critical Point – A point on the graph where the derivative is zero or undefined.
- Canonical Correlation – A measure of the relationship between two sets of variables.
- Cross Product – A vector operation producing another vector perpendicular to the plane of the vectors.
- Characteristic Polynomial – A polynomial equation derived from the determinant of a matrix.
- Chain Rule – A rule for differentiating compositions of functions.
- Center – A point equidistant from all points on a circle or sphere.
- Constant Function – A function that always returns the same value.
- Closed Form – An expression that can be calculated in a finite number of operations.
- Continuous Function – A function without breaks, jumps, or holes.
- Complement set – The set of elements not in a specific set.
- Conjecture – An unproven mathematical statement.
- Contour Integral – An integral taken along a path in the complex plane.
- Cumulative Frequency – The sum of frequencies accumulating up to a particular point.
- Convex Hull – The smallest convex set containing a given set of points.
- Coercivity – The resistance to change in a system or material.
- Cut – A partition of the vertices of a graph into two disjoint subsets.
- Corollary – A statement that follows readily from a previously proven statement.
- Chain – A sequence of elements where each pair is connected.
- Centroid – The center of mass of a geometric object of uniform density.
- Conditional Probability – The probability of an event given that another event has occurred.
- Characteristic Equation – An equation that specifies the characteristic polynomial.
- Convex Set – A subset of a space where a line between any two points lies entirely within the set.
- Cube Number – A number raised to the third power.
- Capacitance – The ability of a system to store charge.
- Calibration – The process of adjusting the values of a model to match real data.
- Cantor Set – An example of a fractal set with a complex structure.
- Column Vector – A matrix with a single column.
- Combinatorics – The branch of mathematics dealing with combinations and permutations.
- Center of Gravity – The point where the total weight of a body is concentrated.
- Closed Interval – An interval that includes its endpoints.
- Contingency Table – A table used to display the frequency distribution of variables.
- Composite Function – A function formed by combining two other functions.
- Concavity – The measure of the curving of a graph (concave up or down).
- Chebyshev’s Inequality – A probability statement about the proportion of data within a certain number of standard deviations from the mean.
- Class Interval – A range of values in a data set.
- Cholesky Decomposition – A matrix factorization technique.
- Continuity – A property of a function that is smooth without any breaks.
- Chain Complex – A sequence of abelian groups connected by homomorphisms.
- Cantor Space – A topological space related to the Cantor set.
- Cartan Matrix – A matrix used in the classification of Lie algebras.
- Cusp – A point where two branches of a curve meet with a common tangent.
- Coxeter Group – A group defined by a set of reflections on a Euclidean space.
- Cyclotomic Field – A number field obtained by adjoining a root of unity to the rationals.
- Cancellation Law – A property of elements under a binary operation.
- Column Space – The set of all possible linear combinations of the columns of a matrix.
- Commutator – An element representing the difference between the product of two elements in reverse orders in a group.
- Canonical Decomposition – A standard decomposition of a mathematical object.
- Credible Interval – An interval in Bayesian statistics representing a range of values for an unknown parameter.
- Convex Function – A function where the line segment between any two points on its graph lies above or on the graph.
- Cuban Prime – A prime that can be expressed as a difference of two cubes.
- Contingency – A term describing a situation dependent on certain conditions or events.
- Conjugate Gradient Method – An algorithm for solving systems of linear equations.
- Complex Plane – A plane used to represent complex numbers graphically.
- Chain Rule – A formula to compute the derivative of a composite function.
- Conditional Expectation – The expected value of a random variable given the occurrence of another event.
- Coplanar – Points or lines that lie in the same plane.
- Calabi–Yau Manifold – A complex manifold important in string theory.
- Cauchy Distribution – A probability distribution with heavy tails.
- Commutative Diagram – A diagram used in category theory.
- Cab Curve – A curve related to a specific algebraic equation.
- Critical Value – A point at which a function changes behaviour.
- Curl – A vector operator describing the rotation of a field.

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