Initial 3-Track Digital Scriptorium Codex & Exact Symbolic Pattern Library

Established geometor/petersen (v0.1.0) for Julius Petersen’s Methods and Theories for the Solution of Problems of Geometrical Constructions, Applied to 410 Problems (Copenhagen, 1866; Authorized English Edition translated by Sophus Haagensen, Cand. Polyt. C. E., Copenhagen & London, 1879).

Highlights

• Multimodal Archival Verification: Inspected high-resolution page scans of the 1879 Høst & Son / Sampson Low edition (pp. 1–102) directly via multimodal vision—preserving Petersen’s four-stage schema (Analysis, Mode of Proceeding, Proof, Discussion), point loci a–k, tangential line loci l–p, parallel translation, replacing, axial reflection, Chapter III Theory of Revolution \((O, v, f)\), homothety, circle inversion, Monge/Gergonne/Malfatti circle systems, and quadratic radical-tower constructibility (including Petersen’s 1879 pre-Lindemann \(\pi\) remark on p. 101).

• Synchronized 3-Track Book Codex: Compiled seven :layout: book thematic units (English 1879 · Summary · Notes) and four apparatus registries (concordance.rst, bibliography.rst, persons.rst, glossary.rst) with zero embedded py_file scripts.

• Exact Symbolic ``geometor.model`` Constructions: Implemented and proved eight 100% float-free SymPy propositions over \(\mathbb{Q}\) and \(\mathbb{Q}(\sqrt{3})\), paired with calibrated theme-adaptive .euclid-graphic SVGs and five Rich CLI demonstrations in demos/.