After many long weeks (months, really) spent applying for and searching for the right job, white smoke! (sorry, couldn’t resist) I will be joining Luke Olson, Bill Gropp, Mike Heath and everyone else in the Scientific Computing Group at the Computer Science Department of the University of Illinois at …

As a math person, you’re often faced with the task of communicating about math. Unfortunately, most modern means of communication, be it email, the web or instant messages, aren’t really suited to typing math. Fortunately, however, many of these means do allow the use of Unicode, and Unicode …

Tim Warburton, Jeff Bridge, my advisor Jan Hesthaven and I have recently submitted an article detailing our efforts to accelerate Discontinuous Galerkin computations by using Nvidia CUDA GPUs. DG seems to be a good fit for these machines.

Get it while it’s hot: Arxiv, Brown SC reports, JCP

Abstract …

I’m happy to announce the first truly public release of Synoptic, my own web-based dynamic note taking application. If you find yourself lost in a jumble of either paper notes, text files on a hierarchical file system, or an overgrown Tomboy wiki, and find yourself craving order, categories, and …

How should scientific codes be constructed? Scientific codes are often experimental in nature, and therefore need to be easy to change, and, of course, quick to develop in the first place—who wants to invest any more than necessary into an idea that might not work out after all? On …

Complex analysis on YouTube:

Yup, too cool not to share. :)

def fermat(n):
    """Returns triplets of the form x^n + y^n = z^n.
    Warning! Untested with n > 2.
    """
    from itertools import count
    for x in count(1):
        for y in range(1, x+1):
            for z in range(1, x**n+y**n + 1):
                if x**n + y**n …

Because when you’re looking for Runge-Kutta methods, you find neat stuff and end up playing with it. That’s why.

(How’s that for a first journal post after fifteen years, huh?) :)