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03 August 09 10:44 | Christoph Rüegg | 7 comment(s)
You may have wondered why the Math.NET Iridium development has stopped abruptly almost two months ago. Luckily this is not entirely true, in the last few weeks the .Net numerics library has progressed well - but at a different place: Math.NET Iridium...
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Iridium Statistics Accumulator: Better numerical stability
07 Januar 09 09:12 | Christoph Rüegg | with no comments
The algorithm on how the Mean, Variance and Sigma are incrementally computed in the statisics accumulator (MathNet.Numerics.Statistics.Accumulator) has been improved last week in Iridium revision 503 to provide better numeric stability when dealing with...
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Iridium 2008 August Release (2008.8.16.470)
14 August 08 02:14 | Christoph Rüegg | 2 comment(s)
Iteration 16 of Math.NET Iridium (Numerics) is now available, as 2008 August Release with Version 2008.8.16.470. Grab it here . Please continue reporting issues and bugs you find, it's very useful and helps making the whole project better. We've...
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Revised Interpolation Toolkit in Iridium
10 Mai 08 05:31 | Christoph Rüegg | with no comments
The next release of Math.NT Iridium, Iteration 16, comes with a revised interpolation architecture and implementation. Up to now, the interpolation classes have been a bit akward to use, partially because of the SampleList collection class you had to...
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Iridium 2008 April Release (v2008.4.14.425)
06 April 08 01:50 | Christoph Rüegg | with no comments
Iteration 14 of Math.NET Iridium (Numerics) is now available, as 2008 April Release with Version 2008.4.14.425. Grab it here . Sorry for the very short release cycle (just one week after iteration 12). The reason is that I won't be able to work on...
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Iridium 2008 March Release (v2008.3.12.405)
31 März 08 11:41 | Christoph Rüegg | 2 comment(s)
Iteration 12 of Math.NET Iridium (Numerics) is now available, as 2008 March Release with Version 2008.3.12.405. Grab it here . Team: Christoph Rüegg, Joannès Vermorel, Matthew Kitchin New Contributions: Mike Shugai Summary: Bugs: All know 3 bugs have...
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Math.NET Tightened Security - working fine for you?
09 Februar 08 12:57 | Christoph Rüegg | 1 comment(s)
Since the February 2008 Release , Math.NET Iridium and Neodym both adapted a new security model: Strong Name: The official assemblies are now strong named. This means that you can put them into the global assembly cache, configure .NET code access policies...
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Iridium 2008 February Release (v2008.2.10.364)
03 Februar 08 12:39 | Christoph Rüegg | 2 comment(s)
Iteration 10 of Math.NET Iridium (Numeric) is now available, as 2008 February Release with Version 2008.2.10.364. Grab it here . This is mostly a service release: Bugs: All known 8 bugs have been fixed. Performance: The linear algebra implementation has...
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Matrix data structure optimization: Nearly 50% perf gain
14 Oktober 07 09:28 | Christoph Rüegg | 2 comment(s)
Some time ago I did some very basic performance analysis of solving linear equation systems with Iridium. Since then we decided to rewrite the Matrix class to use jagged arrays instead of rectangular ones, see this forum discussion . There already was...
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Math.NET Iridium on Linux and Mono
19 August 07 06:43 | Christoph Rüegg | with no comments
One of the principles of the Math.NET Iridium numerics library is to not depend on special hardware or some external super-optimized library, but just on the core .Net Framework 2.0. Thanks to this, Iridium also works with Mono on Linux with no special...
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Iridium Performance Analysis
15 April 07 02:30 | Christoph Rüegg | 3 comment(s)
I started performing some very basic performance analysis of interesting parts of the Math.NET Iridium (Numerics) Library, motivated by a forum post . Machine Configuration I tested it on the following computers: A : Desktop, Intel P4, 3.4 GHz , XP SP2...
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Iridium Class Reference
06 April 07 03:05 | Christoph Rüegg | 3 comment(s)
I've finally tried Sandcastle to automatically generate class references from the inline xml comments, as a replacement for the discontinued NDoc. The result for Math.NET Iridium is now available for download (in both HtmlHelp CHM and Ms Help 2 HxS...
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Iridium Release 8: 2007 March (v2007.3.8)
14 März 07 10:47 | Christoph Rüegg | 1 comment(s)
I've just released a new version of the C# Math.NET Numerics toolkit Iridium , v2007.3.8 . Grab it here . What's new in this release? Completely revised FFT implementation Integration of the Torschutz Random Library, revised and extended with...
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Revised FFT Core for Iridium
28 Februar 07 12:41 | Christoph Rüegg | with no comments
I'm currently working on the Iridium (Math.NET Numerics) Fast Fourier Transformation Implementation, to finally fix known bugs and improve its usability (make it easier to work with). I expect a new Iridium release this week. What's new: Unit...
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Handling Floating Point Numbers
16 August 06 11:23 | Christoph Rüegg | with no comments
Did you know, that: a double can represent 0xFF D FFFFFFFFFFFFF = 18437736874454810623 distinct numbers? there are 450359962736 doubles between 1.0001 and 1.0002? 54975581 between 10'000.0001 and 10'000.0002? 52 between 10'000'000'000...
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