History of ideas
Events from the “History of an idea” sections of the notes, placed on one timeline. Each event links back to its note and to the original sources the note cites.
3 events from 1 history sections are indexed so far.
The timeline uses only years written in the notes. Events without one are listed under “No settled date”.
17th century
1683MacTutor’s history (last update February 1996) reports Seki’s 1683 calculations of forms from through , while noting that his applications concerned equations rather than modern systems.
- 1693
Leibniz’s 1693 work connected coefficient arrays with a determinant-zero condition and permutation-like indexing.
18th century
1750Cramer’s 1750 appendix stated a general signed rule for systems without giving a proof. Kosinski’s 2001 analysis examines Cramer’s general rule, notes that the source appendix omits a proof, and discusses the related priority debate.