Newton [11].

Oresme [16].

Pappus [6] — Parent [13] — Pascal [9] — Plateau [125] — Plato [5] — Plücker [19] — Poisson [14] — Poncelet [14] — Ptolomaeus [6] — Puiseux [72] — Pythagoras [5].

Richelot [16] — Riemann [110].

Saint-Venant [72] — Scheeffer [118] — Schooten [13] — Serret, A. [50] — Seydewitz [33] — Simpson [11] — Smith [29] — Snellius [16] — Spottiswoode [124] — Staudt [19] — Steiner [18] — Stewart [11] —Sturm, Ch. [104].

Tartaglia [8] — Thales [4] — Transon [81].

Vieta [9].

Waring [22] — Wren [32].

Berichtigung. S. [97] Z. 7 v. o. lies viel- statt zwei-.