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Category Archives: JLinAlg

JLinAlg is an open source and easy to use Java library for linear algebra. It is licensed under the LGPL.

Hang in There! Why Even Algebraic Structures are Useful

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Hardly any other subject can hit a freshman as hard as those strange “algebraic structures” during your first math course. You started out to solve real problems and now this professor explains to you, with a straight face, that there really exists such a thing as addition and multiplication and that surprisingly 0 is not equal to 1. What’s that got to do with the real world?

This entry was posted in JLinAlg, Mathematics on August 20, 2020 by Andreas Keilhauer.

Rounding Errors And Arbitrary Precision Arithmetic

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The computer computes. Plus, minus, times and sometimes even divide. The results are always correct. Really? Computers usually use floating point numbers, which are very flexible, but still can cause quite substantial rounding errors – at least when you are doing complex calculations with many steps. These small inaccuracies can accumulate and become a creeping poison. Arbitrary precision arithmetic offers a way out.

This entry was posted in JLinAlg, Mathematics on December 28, 2014 by Andreas Keilhauer.
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