Rank: 384 based on 296 downloads (last 30 days) and 5 files submitted
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Jonas Lundgren

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Company/University
Saab Underwater Systems AB
Lat/Long
58.53076, 15.033664

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Files Posted by Jonas View all
  • 1 - 5 of
  • 5
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
27 Oct 2009 ALTSUM Convergence acceleration of alternating series. Author: Jonas Lundgren alternating, convergence, sum, series, mathematics, approximation 34 0
28 Aug 2009 Screenshot Fit a spline to noisy data Fit a spline to noisy data. Author: Jonas Lundgren spline, cubic spline, ppint, interpolation, ppfit, splinefit 137 14
  • 4.4
4.4 | 10 ratings
23 Jun 2009 DIFFERENT An alternative to GRADIENT for non-uniform grids. Author: Jonas Lundgren gradient, approximation, different, derivative 16 0
17 Mar 2009 QUADGR Gauss-Legendre quadrature with Richardson extrapolation. Author: Jonas Lundgren richardson, integral, legendre, gauss, extrapolation, quadrature 76 1
  • 5.0
5.0 | 1 rating
19 Mar 2008 Calculate pi decimals Calculates pi decimals with Machin's formula Author: Jonas Lundgren pi decimals, mathematics, general, machins formula 33 1
  • 5.0
5.0 | 1 rating
Comments and Ratings by Jonas View all
  • 1 - 5 of
  • 6
Updated File Comments Rating
25 Sep 2009 Fit a spline to noisy data Fit a spline to noisy data. Author: Jonas Lundgren

Non-uniform distributions of breaks/knots is ok. No problem.
17 Mar 2009 Fit a spline to noisy data Fit a spline to noisy data. Author: Jonas Lundgren

That's true Chaos. This code was not intended for image processing and the figure shouldn't contain any image noise. How did you do to apply the code to a noisy image?
09 Mar 2009 Eigenshuffle Consistently sorted eigenvalue and eigenvector sequences Author: John D'Errico

And the updated rating.
18 Feb 2009 Eigenshuffle Consistently sorted eigenvalue and eigenvector sequences Author: John D'Errico

I missed the comment. Eigenshuffle works very well on all the test problems I have tried. The distance measure is clever! If you replace MINTRACE by MUNKRES of Yi Cao, it will be fast as well.
17 Feb 2009 Eigenshuffle Consistently sorted eigenvalue and eigenvector sequences Author: John D'Errico

Comments and Ratings on Jonas' Files View all
  • 1 - 5 of
  • 17
Updated File Comment by Comments Rating
25 Sep 2009 Fit a spline to noisy data Fit a spline to noisy data. Author: Jonas Lundgren Lundgren, Jonas

Non-uniform distributions of breaks/knots is ok. No problem.
12 Sep 2009 Fit a spline to noisy data Fit a spline to noisy data. Author: Jonas Lundgren Manzino, Ambrogio

If point distribution is not homogeneous, probably the software have some problem in L.S. parametres solution.
How cai I use the software in a multiresolution field data?
02 Sep 2009 Fit a spline to noisy data Fit a spline to noisy data. Author: Jonas Lundgren Hebert, Arthur

Easy to use, does what it says, saves me a ton of work. Thanks.
29 Jul 2009 Fit a spline to noisy data Fit a spline to noisy data. Author: Jonas Lundgren Steffen

Thank you very much - this code saved me a lot of time. Can you please send me references to the implemented method?

28 Apr 2009 Fit a spline to noisy data Fit a spline to noisy data. Author: Jonas Lundgren David

Works very good to fit noisy 1D data, saved me a lot of effort, thank you!
Top Tags Applied by Jonas
  • 1 - 5 of
  • 28
approximation, mathematics, acceleration, alternating, convergence
Files Tagged by Jonas View all
  • 1 - 5 of
  • 5
Updated   File Tags Downloads
(last 30 days) 		Comments Rating
27 Oct 2009 ALTSUM Convergence acceleration of alternating series. Author: Jonas Lundgren alternating, convergence, sum, series, mathematics, approximation 34 0
28 Aug 2009 Screenshot Fit a spline to noisy data Fit a spline to noisy data. Author: Jonas Lundgren spline, cubic spline, ppint, interpolation, ppfit, splinefit 137 14
  • 4.4
4.4 | 10 ratings
23 Jun 2009 DIFFERENT An alternative to GRADIENT for non-uniform grids. Author: Jonas Lundgren gradient, approximation, different, derivative 16 0
17 Mar 2009 QUADGR Gauss-Legendre quadrature with Richardson extrapolation. Author: Jonas Lundgren richardson, integral, legendre, gauss, extrapolation, quadrature 76 1
  • 5.0
5.0 | 1 rating
19 Mar 2008 Calculate pi decimals Calculates pi decimals with Machin's formula Author: Jonas Lundgren pi decimals, mathematics, general, machins formula 33 1
  • 5.0
5.0 | 1 rating
 

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