Descr iption Scientific calculator. Allows to perform caclulation with high precicion and implements most populatr mathematical functions: sin, cos, tan, asin, acon, atan, exp, log, sqr, floor and ceil. Also it make it possible to define your ow

强大的Java 学生管理系统程序，能让你轻松掌握核心思想-Student management system, a powerful Java program, allows you to easily grasp the core idea of