458229v
[Commentary:
This page refers to Euclid X.37. In modern editions the relevant proposition , but Harriot's numbering matches that of both Commandino and Clavius.
If two rational straight lines commensurable in square only be added together, the whole is irrational; and let it be called binomial.
Harriot's example is .
There is also a reference below the diagram to Euclid, .
Triangles and parallelograms which are under the same height are to one another as their bases. ]
If two rational straight lines commensurable in square only be added together, the whole is irrational; and let it be called binomial.
Harriot's example is .
There is also a reference below the diagram to Euclid, .
Triangles and parallelograms which are under the same height are to one another as their bases. ]
Lib, 10: prop.
[Translation: Book X, Proposition ]
[Translation: Book X, Proposition ]
Si duae rationales potentia solum commensurabiles componantur,
tota irrationalis erit, nocetur autem ex binis
[Translation: If two quantities commensurable in power only are combined, the whole will be irrational, moreover separated into two parts.
tota irrationalis erit, nocetur autem ex binis
[Translation: If two quantities commensurable in power only are combined, the whole will be irrational, moreover separated into two parts.

zoom in
zoom out
zoom area
full page
page width
set mark
remove mark
get reference
digilib