Quadratic
Topics referred to by the same term
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Mathematics
Algebra (elementary and abstract)
- Quadratic function (or quadratic polynomial), a polynomial function that contains terms of at most second degree
- Complex quadratic polynomials, are particularly interesting for their sometimes chaotic properties under iteration
- Quadratic equation, a polynomial equation of degree 2 (reducible to 0 = ax2 + bx + c)
- Quadratic formula, calculation to solve a quadratic equation for the independent variable (x)
- Quadratic field, an algebraic number field of degree two over the field of rational numbers
- Quadratic irrational or "quadratic surd", an irrational number that is a root of a quadratic polynomial
Calculus
- Quadratic integral, the integral of the reciprocal of a second-degree polynomial
Statistics and stochastics
- Quadratic form (statistics), scalar quantity ε'Λε for an n-dimensional square matrix
- Quadratic mean, the square root of the mean of the squares of the data
- Quadratic variation, in stochastics, useful for the analysis of Brownian motion and martingales
Number theory
- Quadratic reciprocity, a theorem from number theory
- Quadratic residue, an integer that is a square modulo n
- Quadratic sieve, a modern integer factorization algorithm
Other mathematics
- Quadratic convergence, in which the distance to a convergent sequence's limit is squared at each step
- Quadratic differential, a form on a Riemann surface that locally looks like the square of an abelian differential
- Quadratic form, a homogeneous polynomial of degree two in any number of variables
- Quadratic programming, a special type of mathematical optimization problem
- Quadratic growth, an asymptotic growth rate proportional to a quadratic function
- Periodic points of complex quadratic mappings, a type of graph that can be used to explore stability in control systems
- Quadratic Bézier curve, a type of Bézier curve
Computer science
- Quadratic probing, a scheme in computer programming for resolving collisions in hash tables
- Quadratic classifier, used in machine learning to separate measurements of two or more classes of objects
- Quadratic time, in referring to algorithms with quadratic time complexity
Other
- Quadratic (collection), a 1953 collection of science fiction novels by Olaf Stapledon and Murray Leinster
See also
- All pages with titles beginning with Quadratic
- All pages with titles containing Quadratic
- Cubic (disambiguation), relating to a cube or degree 3, as next higher above quadratic
- Linear, relating to a line or degree 1, as next lower below quadratic
- Quad (disambiguation)
- Quadratic transformation (disambiguation)
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