Edited by:Uwe Mayer, Siegmund Probst, and Achim Trunk
In collaboration with:Regina Stuber
De Gruyter Akademie Forschung
Topics are methods for the geometric construction of equations (constructio aequationum), conic sections, coordinate transformations, special curves. Leibniz developed a general approach with systems of ambiguous signs (méthode de l'université). The texts, including excerpts from Pascal's manuscripts and notes of conversations with Ozanam, Roberval and Tschirnhaus, have so far mostly been unpublished.