Justine Siegemund [SEP] date of death
Justine Siegemund
Justine Siegemund or Siegemundin (26 December 1636 – 10 November 1705) was a renowned Silesian midwife whose "Court Midwife" (1690) was the more read, but not the first, female-published German obstetrical manual.
Early life.
Strikingly, Siegemund herself was childless, which should have technically disqualified her from her profession, as only childbearing midwives were supposed to be able to practice. Had that been the case, however, seventeenth century Europe would have lost a consummate professional in her discipline
posthumously.
Mathematics.
- of Osaka publishes "Sampo-Hakki" (算法発揮), in which he gives the resultant and the Laplace expansion of the determinant for the "n"×"n" case. At about this date, also describes and applies the resultant, in "Sampo-Funkai" (算法紛解).
- Michel Rolle publishes "Traité d'Algebre", in which he gives the first published description in Europe of Gaussian elimination.
Medicine.
- Justine Siegemund publishes "Die Kgl. Preußische und Chur