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What (who) is quadratic function - definition
Quadratic function
FUNCTION DEFINED BY A POLYNOMIAL OF DEGREE TWO
Quadratic polynomial; Quadratic functions; Second degree polynomial; Quadratic trinomial; Second-degree polynomial; Second-order polynomial; Second order polynomial; Y=ax^2+bx+c; Y=ax2+bx+c; Quadratic expression; Quadratic math; Single-variable quadratic function
In algebra, a quadratic function, a quadratic polynomial, a polynomial of degree 2, or simply a quadratic, is a polynomial function with one or more variables in which the highest-degree term is of the second degree.
Rational quadratic covariance function
In statistics, the rational quadratic covariance function is used in spatial statistics, geostatistics, machine learning, image analysis, and other fields where multivariate statistical analysis is conducted on metric spaces. It is commonly used to define the statistical covariance between measurements made at two points that are d units distant from each other.
Quadratic irrational number
MATHEMATICAL CONCEPT
Quadratic surd; Quadratic irrationality; Quadratic Irrational Number; Quadratic irrationalities; Quadratic irrational; Quadratic irrational numbers
In mathematics, a quadratic irrational number (also known as a quadratic irrational, a quadratic irrationality or quadratic surd) is an irrational number that is the solution to some quadratic equation with rational coefficients which is irreducible over the rational numbers.Jörn Steuding, Diophantine Analysis, (2005), Chapman & Hall, p.
