pappus's

Updated: May 13, 2025

Among the original things in Pappus's Collection is an enunciation which amounts to an anticipation of what is known as Guldin's Theorem. For calculating arcs in astronomy from other arcs given by means of tables he used propositions in spherical trigonometry.

- The Legacy of Greece : Essays By: Gilbert Murray, W. R. Inge, J. Burnet, Sir T. L. Heath, D'arcy W. Thompson, Charles Singer, R. W. Livingston, A. Toynbee, A. E. Zimmern, Percy Gardner, Sir Reginald Blomfield