Properly setting $PATH for zsh on macOS (fighting with path_helper). #apple

Faster Algorithms via Approximation Theory (PDF, 89 pp.).

But just how close the computed solution $\hat{x}$ and the true solution $x$ are depends on how “nice” the matrix M is. — Don’t solve the normal equations

Python Design Patterns. #python

Readings in Database Systems, 5th Edition, by Peter Bailis, Joseph M. Hellerstein, Michael Stonebraker (eds).

Assorted less(1) tips. If you use Vim, you already know most of those shortcuts.

Ivry by night, Jan. 2026

Speeding up NumPy with parallelism: On concurrent.futures vs. Numba’s jit. #python

Mole: Deep clean and optimize your Mac. #apple

Recent Python bookmarks:

• How uv got so fast: uv is fast because of what it doesn’t do, not because of what language it’s written in.
• profiling.sampling: statistical profiler via periodic stack sampling introduced in Python 3.15.
• Exploring Mathematics with Python: mathematics with Python as a replacement to Turbo Pascal.