帕普斯定理 定義
Pappus’s theorem or the theorem of Pappus generally refer to several different theorems. They include Pappus's centroid theorem, the Pappus chain, Pappus's harmonic theorem, and Pappus's hexagon theorem.
來源
Pappus's Theorem, mathworld.wolfram.com/PappussTheorem.html.
×