companion-code

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tbc8br / dtmc-self-loop-absorption-invariance

Companion Python/NumPy code for absorption-probability invariance under transient self-loop deformation in finite absorbing DTMCs.

python reproducible-research numpy markov-chains num stochastic-processes numerical-linear-algebra dtmc absorbing-markov-chains companion-code self-loops absorption-probabilities

Updated Jun 5, 2026
Python

RachidD68 / the-postgresql-handbook

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Companion code for The PostgreSQL Handbook: From First Query to Production. The Lumina Helpdesk schema and deterministic seeds, every SQL listing from the book as a runnable file, all 69 exercise solutions, the C# projects behind Chapters 21-23, and the harness that verified every listing against a live PostgreSQL 18.4. MIT-licensed.