Rank: 14 based on 5489 downloads (last 30 days) and 42 files submitted
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Greg von Winckel

E-mail
Company/University
Karl-Franzens Universität Graz
Lat/Long
47.078957, 15.448676

Personal Profile:

I am a wissenschaftliche Mitarbeiter at Karl-Franzens Universität in Graz, Austria.

Professional Interests:
PDE Constrained optimization, quantum mechanics, numerical methods

 

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Files Posted by Greg View all
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  • 42
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
19 Apr 2006 Quadrature rules for spherical volume integrals Computes weights and nodes for numerically solving spherical volume integrals. Author: Greg von Winckel coordinates, spherical, integral, integration, gauss, quadrature 133 1
  • 5.0
5.0 | 1 rating
27 Dec 2005 n-dimensional simplex quadrature % Construct Gauss points and weights for a n-dimensional simplex Author: Greg von Winckel triangle, interval, integration, tetrahedron, guass quadature, pentatope 179 3
  • 5.0
5.0 | 3 ratings
21 Dec 2005 Gaussian Quadrature for Triangles Compute Gauss nodes and weights for a triangle Author: Greg von Winckel cubature, triangle, numerical, triangular, integration, gauss 162 9
  • 4.0
4.0 | 6 ratings
21 Dec 2005 Gauss Quadrature for Tetrahedra Compute Gauss weights and nodes for a specied tetrahedron Author: Greg von Winckel finite, integration, gauss quadrature, 3d, tetrahedron, element 115 2
  • 5.0
5.0 | 1 rating
11 Nov 2005 Summed Newton-Cotes Rules 2-11 Point Summed Newton-Cotes Rules Author: Greg von Winckel numerical, summed newtoncotes, integration, uniform, grid 140 2
Comments and Ratings on Greg's Files View all
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Updated File Comment by Comments Rating
31 Oct 2009 Block tridiagonal solver Solves block tridiagonal systems of equations. Author: Greg von Winckel jalal, jave

I want to use this code, where i have an N*N blocktridiagonal matrix, each entry is a an N*N tridiagonal matrix in itself. Could you please help me with how to enter the number of blocks.
syntax , nblk=rows/N;
N can be 100
please help me, how to use number of blocks in the algorithm.

24 Jul 2009 Bessel Function Zeros Computes the first k zeros of the Bessel Function of the 1st and 2nd Kinds. Author: Greg von Winckel Avsaroglu, Baris

Hi all

I am using the function in Matlab R2008a
I entered the command besselzero(1/2,1,2)
and the result is different than the value from
Mathematica s BesselYZero[1/2,1]
I also tried some other combinations which seemed fine.
I just wonder if this is a special case or I should check
the numbers given by this Matlab function with some other online sources. Thanks
05 May 2009 Pade' Approximant Computes coefficients of Pade' Approximants to symbolic functions. Author: Greg von Winckel Zhao, Wei

would be better if it could expand in any point
05 May 2009 Legendre-Pade Approximation Computes the Legendre Pade approximation to an analytic function. Author: Greg von Winckel Zhao, Wei

example needed
22 Mar 2009 Legendre-Gauss Quadrature Weights and Nodes Computes the Legendre-Gauss weights and nodes for solving definite integrals. Author: Greg von Winckel Acou, Christine

Excellent! Thanks for sharing. Do you have a reference for your algorithm?
Top Tags Applied by Greg
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approximation, interpolation, integration, polynomials, numerical
Files Tagged by Greg View all
  • 1 - 5 of
  • 42
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
19 Apr 2006 Quadrature rules for spherical volume integrals Computes weights and nodes for numerically solving spherical volume integrals. Author: Greg von Winckel coordinates, spherical, integral, integration, gauss, quadrature 133 1
  • 5.0
5.0 | 1 rating
27 Dec 2005 n-dimensional simplex quadrature % Construct Gauss points and weights for a n-dimensional simplex Author: Greg von Winckel triangle, interval, integration, tetrahedron, guass quadature, pentatope 179 3
  • 5.0
5.0 | 3 ratings
21 Dec 2005 Gaussian Quadrature for Triangles Compute Gauss nodes and weights for a triangle Author: Greg von Winckel cubature, triangle, numerical, triangular, integration, gauss 162 9
  • 4.0
4.0 | 6 ratings
21 Dec 2005 Gauss Quadrature for Tetrahedra Compute Gauss weights and nodes for a specied tetrahedron Author: Greg von Winckel finite, integration, gauss quadrature, 3d, tetrahedron, element 115 2
  • 5.0
5.0 | 1 rating
11 Nov 2005 Summed Newton-Cotes Rules 2-11 Point Summed Newton-Cotes Rules Author: Greg von Winckel numerical, summed newtoncotes, integration, uniform, grid 140 2
 

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