1. Rotation Matrix 2D part 1

Round-14 hunt: picked; source: named-course long-video search (r14); channel screens (sellers/exam/re-upload/devotional/vendor/events), provenance check, vendor/seller/devotional recheck and quality tier B passed; strict per-title check + final strict pass; oEmbed verified.

A 20-minute video from Andi Dharmawan - DIKE UGM: “1. Rotation Matrix 2D part 1”.

Video by Andi Dharmawan - DIKE UGM, played through YouTube's embedded player.