four-colour map problem 四色地图问题
Additionally, the well-known four colour problem and elementary geometry theorem-proving problem have been discussed.
同时，也对四色问题与初等几何定理证明作了简单的讨论。
This article discussed the origin of the colour problem and its true answer and argue the theorem of four color to set.
论述四色的由来及确切答案，并且证明了四色定理的成立。
应用推荐