Due to the variable subjects and methods of solving problems in Higher Mathematics,substitution will not only flexibly develop the ways of problem solving,but also an effect of simplification.

• 高等数学题目类型繁多,解题方法灵活多变,其中代换法不但能开拓灵活巧妙的解题思路,而且有化难为易、化繁为简之功效。