二、在命令行窗口内，我们可以进行简单的数学运算，如四则运算、次方运算等，还可以定义矩阵；（定义矩阵时，格式为：x=[ ]，同一行的元素之间用空格隔开，换行用分号“；”）
2. In the command line window, we can perform simple mathematical operations, such as four arithmetic operations, power operations, etc., and also define a matrix; (when defining a matrix, the format is: x=[ ], use between elements in the same row Separate by spaces, use semicolon ";" for line breaks)
三、在对矩阵进行计算时，需要用到“.*”以及“./”等，如A和B都是三阶方阵，“.*”代表把A和B两个矩阵对应位置元素相乘在分别放入该位置生成一个新的矩阵；（“.*”和“./”类似）
3. When calculating the matrix, you need to use ".*" and "./", etc., for example, A and B are both third-order square matrices, and ".*" represents the corresponding position elements of the two matrices A and B. Multiply and put them into the position to generate a new matrix; (".*" and "./" are similar)
