Nice specs for System76 laptops.

Algebraic and geometric methods in enumerative combinatorics (PDF, 144 pp.), by Federico Ardila.

Three typefaces for mathematics (PDF, 78 pp.). #tex

Why Discord? Because Slack sucks at some point, you know, and there we go:

Github, you’re safe with that number of snapshots!

  Timber Timbre, Creep On Creepin’ On.

What makes forecasting hard?

Fitting simple models to the available [COVID-19] data is pointless, misleading and dangerous.

An erratic two-dimensional recursive function Q2. #lisp

Extended floating point precision in R and C. #rstats #clang

By combining a couple of Unix command line into a pipeline you can quickly obtain answers to questions that crop up in software development, production engineering (or site reliability engineering or IT operations depending on where you work), and business analytics. In most cases such answers aren’t directly available from existing applications and other methods for obtaining them would require you to write a dedicated program or script. — Seven reasons to add Unix command line expertise to your tool chest