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Displaying records 191 to 200 of 237 records.
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191. Shape-Preserving, Multi-Scale Fitting of Bivariate Data by Cubic L^d1^ Smoothing Splines
Topic: Math
Published: 5/10/2002
Authors: David E. Gilsinn, J E Lavery
Abstract: Bivariate cubic L1 smoothing splines are introduced. The coefficients of a cubic L1 smoothing spline are calculated by minimizing the weighted sum of the L1 norms ofsecond derivatives of the spline and the l1 norm of the residuals of the data-fitting ...

192. Simpler Bayesian Alternative to the ISO Guides Use of the Welch-Satterthwaite Formula
Topic: Math
Published: 1/1/2006
Author: Raghu N Kacker
Abstract: The n-qubit concurrence canonical decomposition (CCD) is a generalization of the two-qubit canonical decomposition SU(4)=[SU(2) (x) SU(2)] ? [SU(2) (x) SU(2)], where ? is the commutative group which phases the maximally entangled Bell basis. A pre ...

193. Stable Quasicrystalline Sphere Packing
Topic: Math
Published: 3/1/1999
Authors: Eric J Cockayne, M Mihalkovic
Abstract: Wills (1990, J. Phys., Paris 51, 1061), found a method relating certain decagonal disk packings to decagonal sphere packings with high packing fractions. Applying this technique to the decagonal rectangle-triangle tiling generated by inflation, we ...

194. Statistical Interpretation of Key Comparison Reference Value and Degrees of Equivalence
Series: Journal of Research (NIST JRES)
Topic: Math
Published: 11/1/2003
Authors: Raghu N Kacker, Raju Vsnu Datla, Albert C Parr
Abstract: This paper responds to comments received by the authors on the paper, Combined Result and Associated Uncertainty from Interlaboratory Evaluations Based on the ISO Guide that appeared in Metrologia, 2002, 39, 279-293.

195. Surface Energy Formula for a Hsieh-Clough-Tocher Element
Series: NIST Interagency/Internal Report (NISTIR)
Report Number: 6246
Topic: Math
Published: 1/1/1999
Authors: Marjorie A McClain, Christoph Johann Witzgall

196. TABLE ERRATA for Magnus, Oberhettinger & Soni (1966): Formulas and Theorems for the Special Functions of Mathematical Physics
Topic: Math
Published: 2/16/2012
Author: Howard S Cohl
Abstract: A TABLE ERRATA is submitted concerning a formula in terms of a sum of two Gauss hypergeometric functions for Ferrers function of the second kind. This error occurs on p. 167 of Magnus, Oberhettinger & Soni (1966) Formulas and Theorems for the Special ...

197. Tensor Product B-spline Mesh Generation for Accurate Surface Visualizations in the NIST Digital Library of Mathematical Functions
Topic: Math
Published: 2/12/2010
Authors: Bonita V Saunders, Qiming Wang
Abstract: We discuss the use of tensor product B-spline meshes to design accurate three dimensional graphs of high level mathematical functions for the National Institute of Standards and Technology (NIST) Digital Library of Mathematical Functions. The graph ...

198. Tensor Product Grid Generation for Complex Surface Visualizations in a Digital Library of Mathematical Functions
Topic: Math
Published: 5/25/2009
Authors: Bonita V Saunders, Qiming Wang
Abstract: We have used tensor product B-spline grids to develop accurate plots that wnhance the understanding of high level mathematical functions described in the National Institute of Standards and Technology (NIST) Digital Library of Mathematical Functions. ...

199. The DEMO Quasisymmetric Stellarator
Topic: Math
Published: 2/26/2010
Authors: Paul R. Garabedian, Geoffrey B McFadden
Abstract: The NSTAB code solves differential equations in conservation form, and the TRAN test particle code tracks guiding center orbits in a fixed background, to provide simulations of equilibrium, stability, and transport in tokamaks and stellarators. These ...

200. The DLMF Project: A New Initiative in Classical Special Functions
Topic: Math
Published: 6/1/1999
Author: Daniel W Lozier
Abstract: NIST (formerly, National Bureau of Standards) has started an ambitious project that aims to produce a successor to Abramowitz and Stegun's {\em Handbook of Mathematical Functions}, published by the National Bureau of Standards in 1964 and reprinted b ...

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