(1) MATLAB的命令文件和函数文件的主要区别是什么? (2)For循环与 while循环的区别是什么? 4、实验报告及要求 (1)简述实验目的。 (2)写出每个问题的程序源代码,并附计算结果 (3)简要回答分析思考题 实验三、 MATLAB图形功能 1、实验目的 (1)学习和掌握 MATLAB图形功能。 (2)学习并掌握通过命令和 Plotting tools两种方式进行基本的图形操作方法。 2、实验内容 (1)基本知识 MATLAB provides a collection of plotting tools that form an interactive plotting environment This environment enables you to Create various type of graph o Select variables to plot directly from a workspace browser Easily create and manipulate subplots in the figure o Add annotations such as arrows. lines and text To create a figure with the plotting tools attached, use the plottools command. You can also start the plotting tools from the figure toolbar by clicking the Show Plot Tools (2)实验内容 Create a variable in the workspace >>X=-2 pipi/25: 2 pi Use the plottools command to create a figure with the plotting tools attached Click 2D Axes in the New Subplot panel of the Figure Paletto Once the axes appears, the Add data button on the plot browser is activated. Click this button to（1）MATLAB 的命令文件和函数文件的主要区别是什么？ （2）For 循环与 while 循环的区别是什么？ 4、实验报告及要求 （1）简述实验目的。 （2）写出每个问题的程序源代码，并附计算结果。 （3）简要回答分析思考题。 实验三、MATLAB 图形功能 1、 实验目的 （1） 学习和掌握 MATLAB 图形功能。 （2） 学习并掌握通过命令和 Plotting Tools 两种方式进行基本的图形操作方法。 2、 实验内容 （1）基本知识 MATLAB provides a collection of plotting tools that form an interactive plotting environment. This environment enables you to  Create various type of graphs  Select variables to plot directly from a workspace browser  Easily create and manipulate subplots in the figure  Add annotations such as arrows, lines, and text  Set properties on graphics objects To create a figure with the plotting tools attached, use the plottools command. You can also start the plotting tools from the figure toolbar by clicking the Show Plot Tools （2）实验内容 Create a variable in the workspace, >>x = -2*pi:pi/25:2*pi; Use the plottools command to create a figure with the plotting tools attached. >>plottools Click 2D Axes in the New Subplot panel of the Figure Palette. Once the axes appears, the Add Data button on the Plot Browser is activated. Click this button to