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[Commentary:
The diagram on this page is copied from Clavius, Geometria practica (1604), page 176. On pages 175 to 178 Clavius stated and proved what is usually known as Heron's Rule, for the area of a triangle given its sides. Harriot translates Clavius's verbal proof into symbols, and adds variants of his own.
In the second edition of the Geometria practica, of 1606, the same text appears on pages 158 to 161, with the diagram on page 159. (Clavius 1606,
See Also Add MS f. , for the same problem and a similar diagram, there from Ramus, Scholarum mathematicarum libri unus et triginta (Ramus . ]
In the second edition of the Geometria practica, of 1606, the same text appears on pages 158 to 161, with the diagram on page 159. (Clavius 1606,
See Also Add MS f. , for the same problem and a similar diagram, there from Ramus, Scholarum mathematicarum libri unus et triginta (Ramus . ]
2.3o Cla. pa. 176. Geom.
[Translation: Clavius, page 176, Geometria practica
[Translation: Clavius, page 176, Geometria practica
Ego aliter, et
[Translation: Another way of my own, much ]
[Translation: Another way of my own, much ]
Ego
[Translation: Another way of ]
[Translation: Another way of ]
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