Month: September 2010
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Complex gcd in Octave
So I wrote a couple of patches for Octave’s gcd. Jaroslav Hájek rewrote most of a bare bones implementation by David Bateman, but omitted Gaussian integers from the implementation. Octave has integral real types, but only float types for complex numbers, because for some inscrutable reason, C++ itself specifies that std::complex<T> is UB if T…
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Linked on Reddit
Oh, dear me. A few years ago, I wrote a strongly-worded opinion piece on just why I believe so strongly on free software. Today it was linked on Reddit. While I do want free software everywhere, and I would like to completely abolish the notion of proprietary software, I see that as a distant dream.…
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A Personal Introduction to LiDIA
LiDIA is a very old C++ library for computational number theory. The copyright statements inside its source say it’s from 1994. I’m not sure if it’s any good anymore, but it probably isn’t the best one out there, although at one time, it did have the best implementation anywhere for doing arithmetic with elliptic curves.…
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Salve, cronica electronica!
Hello, blog! Hopefully this post is the first of many. I plan to write about several things, both personal and more public/professional. I must say, WordPress was quite easy to set up, but I’m still not sold on PHP. I had to patch a few things here and there, in particular with this nifty $$\LaTeX$$…