Author(s):
Frank J. Swetz (The Pennsylvania State University)
Of the Parabola (Codex 526) is an anonymous handwritten manuscript from the late eighteenth century. Perhaps it was a required student treatise submitted at Cambridge University. It contains 58 postulates on the parabola and its properties. Postulates 43-58 (pp. 53-74) concern the use of the parabola in the theory of projectiles. The opening page of the text discusses the construction of the parabola.
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/X1.png)
On page seven, the parabola is viewed as a conic section.
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/X2.png)
Page 53 begins the discussion of a parabola as a path of a projectile.
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/X3.png)
Proposition 52 allows for the determination of horizontal distance, or range, subtended by a parabola (pp. 62-63).
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/X4.png)
![](/sites/default/files/images/upload_library/46/Swetz_2012_Math_Treasures/U-Penn-Libs/X5.png)
The images above were obtained through the kind cooperation of the University of Pennsylvania Libraries.
Index to Mathematical Treasures
Frank J. Swetz (The Pennsylvania State University), "Mathematical Treasure: 'Of the Parabola' Manuscript," Convergence (February 2019)