介绍数学的历史和一些基本的数学知识.还有些经典的数学小问题.-on the history of mathematics and some basic knowledge of mathematics. Some classical mathematical problems.

一维交错格点法vb源程序, 取所有文本内容,然后以回车换行符进行字串分割.-a staggered grid method vb source files, a staggered grid peacekeeping law vb source files, access to all text, Then Enter newline for strings division.