1、二进制、八进制、十进制及十六进制数的加、减、乘、除、乘方、取模等简单计算 2、科学计算函数，包括(反)正弦、(反)余弦、(反)正切、(反)余切、开方、指数等函数运行 -1, binary, octal, decimal, and hexadecimal number of add, subtract, multiply, divide, involution, modulus and other simple calculation 2, scientific computing f