用“映射单纯形”方法代替“单纯形顶点代换”方法；

The "mapping simplex method"is used instead of the "substitution of simplex vertexes".

斯波纳引理涉及到把一个单纯形分解为较小的单纯形的问题。

Sperner's lemma concerns the decomposition of a simplex into smaller simplices.