用算数运算符操作数字与时间数据来创建语句。
Create expressions with number and date data by using arithmetic operators.
结果1.1：了解数位计算的基本原理、包括数字表意和算数运算。
Outcome 1.1: Understand the fundamental principles of digital computing, including number representation and arithmetic operations.
该研究小组使用此模型处理一系列的方程式，运算数百万的数据包括风速、温度、湿度等大气状况。
The research team uses the model to run millions of numbers -- atmospheric conditions like wind speed, temperature, and moisture -- through a series of equations.
任何乘以“1”的运算数都可以被简化成非零运算数。
Anything multiplying by "1" can be simplified down to the non-zero operand.
电脑在运算数字方面很在行，但人天生就擅长模式匹配，匆匆一瞥甚至是背影都可以认出熟人。
While computers are good at crunching numbers, peopl are naturally good at matching oetterns. Humans can recognize an acquaintance at a glance, even from the back.
任何加上“0”的运算数都可以被简化成非零运算数。
Anything adding "0" can be simplified down to the non-zero operand.
任何乘以“0”的运算数都可以被简化成零。
方程与算数的等式不同在于它含有可以参加运算的未知量。
Equation is different from arithmetic identity in that it contains unknown quantity which can join operations.
运算数：运算符来进行运算操作的数值。
按类型处理：一种编程模式，检查运算数的类型，然后根据类型调用不同的函数来进行运算。
A programming pattern that checks the type of an operand and invokes different functions for different types.
例如，您可能想计算数个值，将它们互相比较，并根据比较的结果执行不同的运算。
For example, you might want to calculate several values, compare them, and perform different operations on them, depending on the result of the comparison.
如果第二个运算数是一个Point，该方法就应该返回一个新的Point，新点的横纵坐标分别为两个点坐标相加。
If the second operand is a Point, the method should return a new Point whose x coordinate is the sum of the x coordinates of the operands, and likewise for they coordinates.
存储模块用于存储大量的运算数据；
不包含式按位异或意味着，如果两个运算数相应比特位不同，其结果为1，否则结果为0。下表显示异或运算结果。
Exclusive or means that if the two operand bits are different the result is 1, otherwise the result is 0. The following table shows the results of an exclusive or operation.
不包含式按位异或意味着，如果两个运算数相应比特位不同，其结果为1，否则结果为0。下表显示异或运算结果。
Exclusive or means that if the two operand bits are different the result is 1, otherwise the result is 0. The following table shows the results of an exclusive or operation.
应用推荐