Walking with a friend along Solano Ave for the Solano Stroll, visiting, then sharing a meal and tea. PDE homework and fluid dynamics and thermodynamic relations that turn into a snarl of notation. Models for thermoelastic damping and radiation boundary conditions. Finite elements and nonsymmetric eigenvalue problems, polynomial computations and error analysis. More Fourier transforms than you can shake a stick at, particularly if you're only willing to shake sticks in a narrow range of frequencies. Gazpacho and green beans with peanuts and fruit with yogurt. Friendly e-mail and technical correspondence and technical support. Floating point and measure theory. Books on statistical mechanics and SPICE and the making of the Oxford English Dictionary.

That's not what I've been up to since this time last week. That's what I've been up to since Sunday morning.