Results 241 to 250 of about 559 (266)
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A Fast Amplitude Approximation For Quadrature Pairs
Bell System Technical Journal, 1971This paper gives an algorithm from which an approximation to the amplitude of a quadrature pair can be obtained simply and without requiring more bits than are needed to represent the largest allowable amplitude, A. If A cos θ and A sin θ are a quadrature pair, the amplitude is $A=(A^{2}\cos^{2}\theta + A^{2}\sin^{2}\theta)^{1\over 2}.$ If AX is the ...
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Approximate Value Iteration Based on Numerical Quadrature
IEEE Robotics and Automation Letters, 2018Learning control policies has become an appealing alternative to the derivation of control laws based on classic control theory. Value iteration approaches have proven an outstanding flexibility, while maintaining high data efficiency when combined with probabilistic models to eliminate model bias.
Julia Vinogradska +2 more
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Bayesian quadrature with non-normal approximating functions
Statistics and Computing, 1998We consider an efficient Bayesian approach to estimating integration-based posterior summaries from a separate Bayesian application. In Bayesian quadrature we model an intractable posterior density function f(·) as a Gaussian process, using an approximating function g(·), and find a posterior distribution for the integral of f(·), conditional on a few ...
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Cubature and Quadrature Formulas of High Order of Approximation
Journal of Mathematical Sciences, 2015zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Approximation of Functions and Numerical Quadrature
2009The standard treatment of orthogonal polynomials is Szego (1958), in which several other systems are described and more properties of orthogonal polynomials are discussed. A general reference on multivariate orthogonal polynomials is Dunkl and Yu (2001). A type of orthogonal system that I mentioned, but did not discuss, are wavelets.
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On optimal inequalities between three-point quadratures
Aequationes Mathematicae, 2022Andrzej Komisarski, Szymon Wa̧Sowicz
exaly
Approximate quadratures of the circle. III
Journal of the Franklin Institute, 1879openaire +1 more source