幂函数、指数函数、对数函数都是初等数学中最重要的基本概念之一,研究它们的性质、图象及其应用,需要灵活运用所学过的代数的基础知识和解题的基本技巧,有助于学生思维能力的培养和发展及运算能力的提高.有关这类函数的问题在国内外数学竞赛 Power functions, exponential functions, and logarithmic functions are among the most important basic concepts in elementary mathematics. To study their properties, images, and their applications, it is necessary to use the basic knowledge of learned algebra and the basic skills of solving problems. Contributes to the cultivation and development of student’s thinking ability and the improvement of computational ability. Problems relating to such functions in mathematics competitions at home and abroad