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posts, notes, and short technical writeups

a comprehensive overview of density functional theory

a longer PDF note on density functional theory fundamentals and context

1 min read · March 11, 2026

2026 · DFT Theory Review · notes
Keep Ubuntu 20.04 (or its derivatives) updated and clean

a short practical note for updating and cleaning Debian-based systems

1 min read · January 28, 2021

2021 · Linux Ubuntu Debian FOSS · notes
DIIS: A method to accelerate SCF convergence

direct inversion in the iterative subspace for faster SCF convergence

2 min read · June 23, 2020

2020 · SCF DIIS Theory · notes