Jacques Buot (ca. 1623-1678) was a French mathematician, astronomer, cartographer, and royal engineer. He collaborated with several other mathematicians who, as a group, encouraged the formation of France’s Royal Academy of Sciences. Buot’s handwritten manuscript, Introduction aux Mathematiques, was compiled sometime after 1675. It is a rather theoretical work consisting of definitions, demonstrations, and remarks concerning algebra, the mathematics of quantity, and geometry. Diagrams accompany most of the geometrical discussions.
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/JB-1.png)
Buot’s discussion of multiplication reveals a pedagogical approach to the subject. Multiplication is introduced algebraically: first the product of a monomial with a binomial is considered, then the product of two binomials. To further facilitate understanding, the operation of multiplication is demonstrated using arrays of dots or, perhaps, jetons.
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/JB-2.png)
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/JB-3.png)
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/JB-4.png)
The following is a typical page of text where definitions are introduced.
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/JB-5.png)
Introduction aux Mathematiques is a large work consisting of four books that, in total, comprise 232 folio pages. Three of the books are devoted to geometry. A sample of the geometric presentation is shown below.
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/JB-6.png)
The images above were obtained through the courtesy of the University of Pennsylvania Libraries. The complete manuscript can be viewed via the reference MS 808.
Index to Mathematical Treasures