单片机；计算器；微电子；模拟电路能进行正数加、减、乘、除四则运算的计算器叫做简单计算器；科学计算器是指能兼容正数的四则运算和乘方、开方运算，具有指数、对数、三角函数、反三角函数及存储等计算功能的计算器。 -Singlechip　calculator　Microelectronics　analog circuit can be a positive number add, subtract, multiply, with the exception of four operations is called a simple calculator calculator　scientific calculator is compatible with a positive number refers to the four operations and involution, the side operations, with index, logarithm, trigonometric functions, such as computing and storage反三角函数function calculator.