This weekend I was starved for a good book to read, and there wasn’t any palatable science fiction or fantasy available (I even broke my self-enforced restriction and visited Borders), so I picked up “God is Not Great: How Religion Poisons Everything”...

I’ve reduced a problem to the estimation of where is a random (uniform) dimensional subspace of (abusing notation, where is an orthonormal matrix ) and is a fixed orthonormal matrix. But, how the hell do I find a bound form this norm? I know...

I apologize if you’ve been trying unsuccessfully to access the site. I don’t know why, but lately this server has been intermittently inaccessible: not only does it not serve pages, I can’t log in via SSH. The support people said something is hogging...

The least action principle is a concept that doesn’t sit well with me. Everytime I’ve seen it (usually in some abortive attempt to teach myself Lagrangian and Hamiltonian mechanics) it has seemed awfully unmotivated. I came across an introduction to...

There were things he knew which he was unique in knowing. He knew, for instance, that the dead inhabit another sphere; also that in their lonely nether existence they go on doing all the things they’ve done in life. The writers write masterpieces they...