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1.7 示例展示
下面以一个简单的示例向读者展示如何使用MATLAB进行简单的数值计算。
(1)双击桌面上的MATLAB图标,稍等片刻即可进入MATLAB工作环境界面。
(2)在命令行窗口中输入:
![](https://epubservercos.yuewen.com/191AA7/30939625707348006/epubprivate/OEBPS/Images/48667_34_3.jpg?sign=1739143321-BthM8q19GKNda5I4gIvsJKBEsqnJXNyI-0-1dd633d142ec7dd147e0b4a1b352f23e)
按Enter键,可以在工作区窗口中看到变量w,大小为0.5236。命令行窗口中显示:
![](https://epubservercos.yuewen.com/191AA7/30939625707348006/epubprivate/OEBPS/Images/48667_34_4.jpg?sign=1739143321-vCQhaOXxiFHjcI1nKhTYnO14K3gpM3AF-0-2aa1e37f5aa13735dacfe80a3e733737)
(3)在命令行窗口中输入:
![](https://epubservercos.yuewen.com/191AA7/30939625707348006/epubprivate/OEBPS/Images/48667_34_5.jpg?sign=1739143321-FTjy3TKdZp0B5qiOQmGNkE8fNaREZHy1-0-8e30b5a62a36a46d70ff18f182f071dc)
按Enter键,可以在工作区窗口中看到变量y,大小为0.3420。命令行窗口中显示:
![](https://epubservercos.yuewen.com/191AA7/30939625707348006/epubprivate/OEBPS/Images/48667_34_6.jpg?sign=1739143321-Fy3ASBaV5jyn3sYZNQyjOyUtQ612FKAO-0-80a271d8882e9e037e8e455052153fc9)
(4)在命令行窗口中输入:
![](https://epubservercos.yuewen.com/191AA7/30939625707348006/epubprivate/OEBPS/Images/48667_34_7.jpg?sign=1739143321-MrMI0PlxtMSgTPfluIXha6tEjCoAunxY-0-193d11af5102460a52e98f29f1d538d4)
按Enter键,可以在工作区窗口中看到变量z,大小为0.8660。命令行窗口中显示:
![](https://epubservercos.yuewen.com/191AA7/30939625707348006/epubprivate/OEBPS/Images/48667_34_8.jpg?sign=1739143321-izCTr2Uvlc95xElfMIpR95RvSXivzfSd-0-c921cb4b91973944eb8db2388c9fc613)
〇 提示
当命令后面有分号(半角符号格式)时,按Enter键后,在命令行窗口中不显示运算结果;如果无分号,则在命令行窗口中显示运算结果。若希望先输入多条语句,然后同时执行它们,则在输入下一条命令时,要在按住Shift键的同时按Enter键,进行换行输入。例如,比较使用“;”和不使用“;”的区别。
在命令行窗口中依次输入命令并显示输出结果。
![](https://epubservercos.yuewen.com/191AA7/30939625707348006/epubprivate/OEBPS/Images/48667_34_9.jpg?sign=1739143321-dc87naUSIeEkwEy4qXm2ygjfrKo1rUun-0-4586fa77675fb35d25d29e499f604ded)
![](https://epubservercos.yuewen.com/191AA7/30939625707348006/epubprivate/OEBPS/Images/48667_35_1.jpg?sign=1739143321-62eXuwisWLgr3QG3x23gFpVvuY8juCpO-0-4c5b1121779c31d098069f39c1034a30)