4724r
[Commentary:
The page is part of Harriot’s
introduction of compound diagrams of motion, a group of folios on which Harriot eventually succeeds in deriving, by means of such diagrams, a general expression for the time of flight of a projectile (Schemmel 2008, Section 8.2). ]
The algebraic transformations serve to check the formula
for the time of flight of a projectile obtained on
f. 23. ]
5) b.)