用MATLAB做一个计算器_包括加减乘除_平方_清空等功能
MATLAB使用教程
MATLAB使用教程MATLAB是一种高级的计算机语言和环境，广泛应用于科学、工程和其他领域的数值计算和数据可视化。
它具有简单易学的语法，强大的计算功能和丰富的工具箱，成为许多研究人员和工程师的首选工具。
这篇文章将提供一个简要的MATLAB使用教程，帮助初学者快速上手使用MATLAB进行数值计算和数据可视化。
在MATLAB中，您可以进行基本的数值计算，例如加减乘除和幂运算。
例如，要计算1加2的结果，您可以在命令窗口中输入“1+2”，然后按回车键执行命令。
MATLAB将显示计算结果3此外，MATLAB还提供了许多内置的数学函数，例如sin、cos、exp等。
您可以通过输入函数名和参数来使用这些函数，并按回车键执行命令。
例如，要计算sin(2.5)的结果，您可以在命令窗口中输入“sin(2.5)”，然后按回车键执行命令。
MATLAB将显示计算结果。
A=[1,2,3;4,5,6;7,8,9];B=[2,0,1;3,1,2;4,5,6];C=A*B;上述代码将创建两个3x3的矩阵A和B，并将其相乘，结果存储在矩阵C中。
除了数值计算，MATLAB还可以进行数据可视化，使数据更容易理解和分析。
您可以使用MATLAB提供的绘图函数创建各种类型的图形，例如折线图、散点图和柱状图。
以下是一个例子：x = 0:0.1:2*pi;y = sin(x);plot(x, y);上述代码将创建一个x轴范围从0到2π的向量，并将其作为横坐标。
然后，计算sin(x)的值，并将其作为纵坐标。
最后，在坐标系中绘制这些数据点并连接它们以形成一条曲线。
此外，MATLAB还提供了许多其他的功能和工具箱，例如图像处理、信号处理和统计分析。
您可以通过学习官方文档和参考书籍来深入了解这些功能，并在实践中掌握它们的使用。
总之，MATLAB是一个强大的数值计算和数据可视化工具，适用于各种科学、工程和其他领域。
本教程提供了一个简要概述，帮助初学者快速上手使用MATLAB进行数值计算和数据可视化。
matlab gui计算器设计总结
matlab gui计算器设计总结设计MATLAB GUI计算器是一项有趣且具有挑战性的任务。
在这个过程中，你需要考虑到用户的需求和体验，以及如何实现这些需求的技术细节。
以下是对此任务的设计总结：1. 需求分析：在设计计算器之前，首先要明确用户的需求。
一个基本的计算器应该能够进行基本的算术运算（加、减、乘、除）以及求平方和平方根等操作。
此外，设计一个友好的用户界面也非常重要，以方便用户理解和使用计算器。
2. 创建GUI界面：MATLAB的图形用户界面(GUI)工具箱可以帮助你创建计算器的用户界面。
你可以使用各种小部件（如按钮、文本框和标签）来创建界面，并通过回调函数来定义小部件的行为。
3. 实现计算器功能：在MATLAB中，你可以使用脚本或函数来实现计算器的功能。
当用户点击按钮时，回调函数将被触发，执行相应的计算，并将结果显示在界面上。
4. 优化用户体验：良好的用户体验是GUI设计的重要方面。
你可以通过调整颜色、字体和布局来改善界面外观，并通过添加错误处理和提示信息来提高程序的易用性。
5. 测试和调试：完成设计后，进行彻底的测试是非常重要的。
检查所有功能是否正常工作，是否有任何错误或异常行为。
此外，通过用户反馈来进一步优化计算器也是一个好主意。
6. 代码组织和可维护性：为了使代码易于理解和维护，应该保持良好的代码组织和注释。
此外，考虑将计算逻辑和GUI代码分离，以方便未来的修改和扩展。
7. 扩展功能：除了基本功能外，还可以考虑添加一些高级功能，如科学计算、三角函数计算等。
这将为用户提供更多选择，并增加计算器的实用价值。
8. 跨平台兼容性：虽然MATLAB主要用于学术和工程领域，但确保GUI计算器在各种操作系统上都能正常工作仍然是一个好习惯。
这可能需要一些额外的测试和调整。
9. 文档和帮助系统：提供详细的文档和帮助信息可以帮助用户更好地理解和使用计算器。
你可以创建一个帮助文件或使用MATLAB的帮助系统来提供这些信息。
基于MATLAB的计算器设计
2021.07科学技术创新大数据时代，时时刻刻都在和数据打交道。
为了解决人们在学习、生活以及工作中遇到的一些常见的数据计算问题，利用MATLAB 设计出一款实用的、简单的计算器。
该计算器的操作过程很简单，只需使用者按下相应按钮，便能轻松解决以下问题：四则运算、对数运算、指数运算、开平方运算等。
1MATLAB GUI 简介MATLAB GUI 是指采用图形方式显示的计算机操作用户界面，是MATLAB 用户可视化交互式的工具，运用GUI 生成的操作界面，避免了用户浏览繁冗的代码进行操作。
实现了基于MATLAB GUI 的计算器功能的设计。
2计算器的设计过程及功能验证2.1计算器设计流程设计计算器，首先用MATLAB GUI 设计一个计算器界面，这个界面要包括加减乘除、三角函数、对数等按钮，然后编辑程序实现相应的功能，最后进行功能验证。
流程如图1所示。
图1计算器设计流程图2.2计算器界面设计在MATLAB 中新建一个GUI 界面，在GUI 界面上绘制一个面板，面板上绘制一个静态文本框用来显示输入和输出，再绘制30个按钮，每个按钮代表一种功能，双击按钮调出按钮的属性检查器，将按钮代表的功能标注在按钮上，最后调整按钮的大小和颜色、面板的颜色以及整体的布局使计算器看起来更美观，界面如图2所示：图2计算器界面图3输入数据基于MATLAB 的计算器设计Calculator Design Based on MATLAB赵海君赵青云（山西师范大学物理与信息工程学院，山西临汾041004）摘要：论文设计基于MATLAB 的多功能计算器，运用MATLAB 的GUI 设计计算器界面，通过编写程序实现四则运算、指数运算、对数运算、正余弦运算等功能。
关键词：MATLAB ；计算器；GUI Abstract ：This paper designs a multi-function calculator based on MATLAB,uses Matlab GUI to design the calculator interface,and realizes four arithmetic operations,exponential operation,logarithm operation,sine cosine operation and other functions by programming.Key words ：MATLAB;Calculator;GUI中图分类号：TP311.1文献标识码：A 文章编号：2096-4390(2021)07-0089-02教改项目：2018年山西师范大学校级教改项目“学生工程素质的培养在《传感器技术》课程教改中的实践”（2018JGXM-43），赵青云。
电信12-1班 1206110109matlab简易计算器设计步骤与回调函数设计
简易算术计算器的设计一、算术计算器的功能：能进行简单的加、减、乘、除法，sin,cos,tan,x^2,squrt运算，输入文本框显示为常量多项式，输出文本框显示为精确到小数点后十位的数值。
计算器包含十个数字键0~9、小数点键“.”、小括号键“（”“）”、运算符号、清屏键、退格键、退出键等。
二、设计思路：每按下一个数字键或者符号键的时候，利用get(handles.edit1,'string')获取当前输入文本框edit1的string属性，并通过字符串合并函数strcat（）将当前输入文本框edit1的字符型string属性与按键的字符型string属性合并成字符串，然后利用属性设置函数set(); 将合并后的字符串返回到输入文本框edit1的string属性。
当输入结束，用户按下等号的时候，采用x=get(handles.edit1,'string')获取当前输入文本框edit1的string属性，然后利用字符串执行命令y1=eval(x)计算输入文本框的表达式，得到的结果是字符型常量；然后利用字符串输出格式控制函数y=sprintf('%.10f',y1)使输出结果精确到小数点后十位；最后利用属性设置函数set(handles.edit2,'string',y)将转换后的字符串返回到输出文本框edit2的string属性。
三、设计步骤：1、运行matlab2014a，进入主界面。
2、输入guide，进入GUI开发环境。
3、创建控件：按钮包括数字0~9、运算符“+ - * /”、功能键等26个，输入和动态静态文本框，显示文字的静态文本框四个等。
4、对控件单击右键弹出菜单，选择属性检查器，设置控件属性。
5、选择工具栏上的对齐对象按键，调整控件布局。
6、选择工具栏上的Tab 顺序编辑器按键，通过和设置各控件的Tab顺序。
7、设计菜单：在GUI开发环境下，选择工具栏上的进入菜单编辑器，分别选择和创建主菜单和子菜单。
Matlab实现的简易计算器程序代码
function varargout = jisuanqi(varargin)% JISUANQI M-file for jisuanqi.fig% JISUANQI, by itself, creates a new JISUANQI or raises the existing % singleton*.%% H = JISUANQI returns the handle to a new JISUANQI or the handle to % the existing singleton*.%% JISUANQI('CALLBACK',hObject,eventData,handles,...) calls the local % function named CALLBACK in JISUANQI.M with the given input arguments. %% JISUANQI('Property','Value',...) creates a new JISUANQI or raises the % existing singleton*. Starting from the left, property value pairs are % applied to the GUI before jisuanqi_OpeningFcn gets called. An% unrecognized property name or invalid value makes property application % stop. All inputs are passed to jisuanqi_OpeningFcn via varargin. %% *See GUI Options on GUIDE's Tools menu. Choose "GUI allows only one % instance to run (singleton)".%% See also: GUIDE, GUIDATA, GUIHANDLES% Edit the above text to modify the response to help jisuanqi% Last Modified by GUIDE v2.5 20-Jul-2011 09:45:20% Begin initialization code - DO NOT EDITgui_Singleton = 1;gui_State = struct('gui_Name', mfilename, ...'gui_Singleton', gui_Singleton, ...'gui_OpeningFcn', @jisuanqi_OpeningFcn, ...'gui_OutputFcn', @jisuanqi_OutputFcn, ...'gui_LayoutFcn', [] , ...'gui_Callback', []);if nargin && ischar(varargin{1})gui_State.gui_Callback = str2func(varargin{1});endif nargout[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});elsegui_mainfcn(gui_State, varargin{:});end% End initialization code - DO NOT EDIT% --- Executes just before jisuanqi is made visible.function jisuanqi_OpeningFcn(hObject, eventdata, handles, varargin) handles.current_str='';%´ËΪ´æ´¢µ±Ç°µÄ×Ö·û´®handles.L1_str='';handles.L2_str='';%´ËΪ´æ´¢ÉÏÒ»¸öÊý×ÖµÄ×Ö·û´®% This function has no output args, see OutputFcn.% hObject handle to figure% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% varargin command line arguments to jisuanqi (see VARARGIN)% Choose default command line output for jisuanqihandles.output = hObject;% Update handles structureguidata(hObject, handles);% UIWAIT makes jisuanqi wait for user response (see UIRESUME)% uiwait(handles.figure1);% --- Outputs from this function are returned to the command line. function varargout = jisuanqi_OutputFcn(hObject, eventdata, handles) % varargout cell array for returning output args (see VARARGOUT);% hObject handle to figure% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Get default command line output from handles structurevarargout{1} = handles.output;% --- Executes on button press in Number_0.function Number_0_Callback(hObject, eventdata, handles)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ0£¬Èç¹û°´ÁË0¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'0');handles.L1_str=strcat(handles.L1_str,'0');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Number_0 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% --- Executes on button press in xiaoshudian.function xiaoshudian_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'.');guidata(hObject, handles);%СÊýµã% hObject handle to xiaoshudian (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% --- Executes on button press in jia_jian.function jia_jian_Callback(hObject, eventdata, handles)% hObject handle to jia_jian (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% --- Executes on button press in Number_1.function Number_1_Callback(hObject, eventdata, handles)% hObject handle to Number_1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ1£¬Èç¹û°´ÁË1¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'1');handles.L1_str=strcat(handles.L1_str,'1');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% --- Executes on button press in Number_2.function Number_2_Callback(hObject, eventdata, handles)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ2£¬Èç¹û°´ÁË1¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'2');handles.L1_str=strcat(handles.L1_str,'2');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Number_2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in Number_3.function Number_3_Callback(hObject, eventdata, handles)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ3£¬Èç¹û°´ÁË3¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'3');handles.L1_str=strcat(handles.L1_str,'3');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Number_3 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in Number_4.function Number_4_Callback(hObject, eventdata, handles)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ4£¬Èç¹û°´ÁË4¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'4');handles.L1_str=strcat(handles.L1_str,'4');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Number_4 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in Number_5.function Number_5_Callback(hObject, eventdata, handles)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ5£¬Èç¹û°´ÁË5¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'5');handles.L1_str=strcat(handles.L1_str,'5');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Number_5 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in Number_6.function Number_6_Callback(hObject, eventdata, handles)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ6£¬Èç¹û°´ÁË6¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'6');handles.L1_str=strcat(handles.L1_str,'6');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Number_6 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in Number_7.function Number_7_Callback(hObject, eventdata, handles)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ7£¬Èç¹û°´ÁË7¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'7');handles.L1_str=strcat(handles.L1_str,'7');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Number_7 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in Number_8.function Number_8_Callback(hObject, eventdata, handles)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ8£¬Èç¹û°´ÁË8¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'8');handles.L1_str=strcat(handles.L1_str,'8');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Number_8 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in Number_9.function Number_9_Callback(hObject, eventdata, handles)%Á¬½Óµ±Ç°µÄ×Ö·û´®ºÍ9£¬Èç¹û°´ÁË9¼üµÄ»°¡£handles.current_str=strcat(handles.current_str,'9');handles.L1_str=strcat(handles.L1_str,'9');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Number_9 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in jiahao.function jiahao_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'+');set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to jiahao (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in denghao.function denghao_Callback(hObject, eventdata, handles)st = get(handles.edit1,'String');%¼ÆËã½á¹û£¬²¢´æ·Åµ½µÚ¶þ¸ö±à¼-¿òÖС£val = eval(st);s = num2str(val);set(handles.edit2,'String',s);guidata(hObject, handles);% hObject handle to denghao (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in jianhao.function jianhao_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'-');set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to jianhao (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in X_daoshu.function X_daoshu_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'\1');set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to X_daoshu (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in chenghao.function chenghao_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'*');set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to chenghao (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in baifenhao.function baifenhao_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'/100');set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);handles.L2_str=handles.L1_str;handles.L1_str = '';% hObject handle to baifenhao (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in chuhao.function chuhao_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'/');set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to chuhao (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in Sqrt.function Sqrt_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'sqrt');handles.L1_str=strcat(handles.L1_str,'sqrt');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to Sqrt (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in X_lifang.function X_lifang_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'^3');set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to X_lifang (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in x_pingfang.function x_pingfang_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'^2');set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to x_pingfang (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in zhengqie.function zhengqie_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'tan');handles.L1_str=strcat(handles.L1_str,'tan');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to zhengqie (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in zhengxian.function zhengxian_Callback(hObject, eventdata, handles)handles.current_str=strcat(handles.current_str,'sin');handles.L1_str=strcat(handles.L1_str,'sin');%ÔÚÊä³öµ±Ç°µÄ×Ö·û´®set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);% hObject handle to zhengxian (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in CE.function CE_Callback(hObject, eventdata, handles)% hObject handle to CE (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)% --- Executes on button press in C.function C_Callback(hObject, eventdata, handles)% hObject handle to C (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) handles.current_str = '';set(handles.edit1,'String','0.');set(handles.edit2,'String','0.');guidata(hObject, handles);% --- Executes on button press in Backspace.function Backspace_Callback(hObject, eventdata, handles)% hObject handle to Backspace (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA)s1 = handles.current_str;handles.current_str = s1(1:length(s1)-1);set(handles.edit1,'String',handles.current_str);guidata(hObject, handles);function edit1_Callback(hObject, eventdata, handles)% hObject handle to edit1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit1 as text% str2double(get(hObject,'String')) returns contents of edit1 as a double% --- Executes during object creation, after setting all properties. function edit1_CreateFcn(hObject, eventdata, handles)% hObject handle to edit1 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'),get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');endif ispcset(hObject,'BackgroundColor','white');elseset(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor')) ;end% --- Executes on button press in shujujiazai.function shujujiazai_Callback(hObject, eventdata, handles)% hObject handle to shujujiazai (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)global YSData;[filename,pathname,FILTERINDEX]=uigetfile({'*.xls';'*.dat';'*.*'},'Ñ¡ÔñÊý¾ÝÎļþ');if(FILTERINDEX==0)return;endstr_filename=[pathname,filename];fid=fopen(str_filename,'rt');if(fid==-1)errordlg('Open file error!','Open error');return;endYSData=xlsread(str_filename);set(handles.lujingxianshi,'String',str_filename);set(handles.tuxingxianshi,'Enable','on');function lujingxianshi_Callback(hObject, eventdata, handles)% hObject handle to lujingxianshi (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)set(handles.lujingxianshi,'String',pathname);% Hints: get(hObject,'String') returns contents of lujingxianshi as text % str2double(get(hObject,'String')) returns contents of lujingxianshi as a double% --- Executes during object creation, after setting all properties. function lujingxianshi_CreateFcn(hObject, eventdata, handles)% hObject handle to lujingxianshi (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'),get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');end% --- Executes on button press in zhuxingtu.function zhuxingtu_Callback(hObject, eventdata, handles)% hObject handle to zhuxingtu (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)set(handles.zhuxingtu,'Value',1);set(handles.zhexiantu,'Value',0);set(handles.yuanbingtu,'Value',0);% Hint: get(hObject,'Value') returns toggle state of zhuxingtu% --- Executes on button press in zhexiantu.function zhexiantu_Callback(hObject, eventdata, handles)% hObject handle to zhexiantu (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)set(handles.zhuxingtu,'Value',0);set(handles.zhexiantu,'Value',1);set(handles.yuanbingtu,'Value',0);% Hint: get(hObject,'Value') returns toggle state of zhexiantu% --- Executes on button press in yuanbingtu.function yuanbingtu_Callback(hObject, eventdata, handles)% hObject handle to yuanbingtu (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)set(handles.zhuxingtu,'Value',0);set(handles.zhexiantu,'Value',0);set(handles.yuanbingtu,'Value',1);% Hint: get(hObject,'Value') returns toggle state of yuanbingtu% --- Executes on button press in tuxingxianshi.function tuxingxianshi_Callback(hObject, eventdata, handles)global YSData;%Åжϡ®Í¼ÏñÀàÐÍ¡¯ÏÂ×éºÏ¿òÖеĸ÷µ¥Ñ¡°´Å¥µÄÑ¡ÖÐÇé¿ö£¬²¢´æ´¢ÔÚIndex_rad iobuttonÖÐIndex_radiobutton=get([handles.zhuxingtu,handles.zhexiantu,handles.yuan bingtu],'Value');%½øÐÐͼÐÎÉú³Éif(Index_radiobutton{1}==1)bar(YSData);title('¸÷Êý¾ÝÖ±·½Í¼');endif(Index_radiobutton{2}==1)plot(YSData);title('¸÷Êý¾ÝÕÛÏßͼ');endif(Index_radiobutton{3}==1)pie(YSData);title('¸÷Êý¾ÝÔ²±ýͼ');end% hObject handle to tuxingxianshi (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% global YSData;% --- Executes during object creation, after setting all properties. function tuxingxianshi_CreateFcn(hObject, eventdata, handles)% hObject handle to tuxingxianshi (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called function edit2_Callback(hObject, eventdata, handles)% hObject handle to edit2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit2 as text% str2double(get(hObject,'String')) returns contents of edit2 as a double% --- Executes during object creation, after setting all properties. function edit2_CreateFcn(hObject, eventdata, handles)% hObject handle to edit2 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'),get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');end% --- Executes on button press in Quit.function Quit_Callback(hObject, eventdata, handles)% hObject handle to Quit (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)close(gcf);% --- Executes during object deletion, before destroying properties. function zhengxian_DeleteFcn(hObject, eventdata, handles)% hObject handle to zhengxian (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)function edit3_Callback(hObject, eventdata, handles)% hObject handle to edit3 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles structure with handles and user data (see GUIDATA)% Hints: get(hObject,'String') returns contents of edit3 as text% str2double(get(hObject,'String')) returns contents of edit3 as a double% --- Executes during object creation, after setting all properties. function edit3_CreateFcn(hObject, eventdata, handles)% hObject handle to edit3 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB% handles empty - handles not created until after all CreateFcns called % Hint: edit controls usually have a white background on Windows.% See ISPC and COMPUTER.if ispc && isequal(get(hObject,'BackgroundColor'),get(0,'defaultUicontrolBackgroundColor'))set(hObject,'BackgroundColor','white');end。
用MATLAB做的 一个计算器
一、布局GUI。
1.打开Matlab，输入Guide 回车或者在工具栏上点击图标出现Guide 窗口：2.然后双击“Blank GUI(Default)”出现GUI窗口3.添加按钮4.根据按钮的作用及视觉效果做一定的修改把按钮的字符串大小、颜色进行设置，对按钮的位置进行排布，尽量使按钮集中在静态文本框下面。
最终设置的静态文本框为白色，其他按钮均为分红色。
5.保存、添加功能函数把做好的按钮及静态文本框保存后自动弹出Editor的M文本，对然后对相应的pushbutton添加功能函数。
以下是相应按钮的功能函数。
（1）数字按键编写。
在function pushbutton1_Callback(hObject, eventdata, handles）下输入：textString = get(handles.text1,'String');textString =strcat(textString,'0');set(handles.text1,'String',textString)这是使用句柄handles指向对象text1，并以字符串形式来存储数据文本框text1的内容，并存储数个“0”，然后由set(handles.text1,'String','textString'在text1中输出。
同理，分别在function pushbutton2~10_Callback(hObject, eventdata, handles）下给1~9数字按键下编写此类程序。
（2）.符号键：function pushbutton12_Callback(hObject, eventdata, handles)textString = get(handles.text1,'String');textString =strcat(textString,'+');set(handles.text1,'String',textString)strcat的作用是将两个字符串连接起来，就是在已输入的存储数据textString 后添加“+”进行运算。
如何在MATLAB中进行数值计算
如何在MATLAB中进行数值计算1.基本数学操作：-加法、减法、乘法、除法：使用+、-、*、/操作符进行基本算术运算。
-幂运算：使用^或.^(点乘)操作符进行幂运算。
- 开平方/立方：可以使用sqrt(或power(函数进行开平方和立方运算。
2.矩阵操作：- 创建矩阵：可以使用矩阵构造函数如zeros(、ones(、rand(等创建矩阵。
- 矩阵运算：使用*操作符进行矩阵相乘，使用transpose(函数进行矩阵转置。
- 矩阵求逆和求解线性方程组：使用inv(函数求矩阵的逆，使用\操作符求解线性方程组。
3.数值积分和微分：- 数值积分：使用integral(函数进行数值积分。
可以指定积分函数、积分上下限和积分方法。
- 数值微分：使用diff(函数进行数值微分。
可以指定微分函数和微分变量。
4.解方程：- 一元方程：使用solve(函数可以解一元方程。
该函数会尝试找到方程的精确解。
- 非线性方程组：使用fsolve(函数可以求解非线性方程组。
需要提供初始值来开始求解过程。
-数值方法：可以使用牛顿法、二分法等数学方法来求解方程。
可以自定义函数来实现这些方法。
5.统计分析：- 统计函数：MATLAB提供了丰富的统计分析函数，如mean(、std(、var(等用于计算均值、标准差、方差等统计量。
- 直方图和密度估计：使用histogram(函数可以绘制直方图，并使用ksdensity(函数进行核密度估计。
- 假设检验：使用ttest(或anova(函数可以进行假设检验，用于比较多组数据之间的差异。
6.数值优化：- 非线性最小化：使用fminunc(函数可以进行非线性最小化。
需要提供目标函数和初始点。
- 线性规划：使用linprog(函数可以进行线性规划。
需要提供目标函数和限制条件。
- 整数规划：使用intlinprog(函数可以进行整数规划。
需要提供目标函数和整数约束。
7.拟合曲线：- 线性拟合：使用polyfit(函数进行线性拟合。
matlab加减乘除运算
matlab加减乘除运算
Matlab是一种流行的科学计算软件，它可以进行各种数学运算，包括加减乘除运算。
在Matlab中，加法和减法运算可以使用'+'和'-'符号完成，乘法和除法运算可以使用'*'和'/'符号完成。
下面是一些示例代码，演示如何在Matlab中进行加减乘除运算：
加法运算：
a = 5;
b = 10;
c = a + b;
disp(c);
这个代码将输出15，因为a和b的值相加得到15，然后将结果赋给变量c。
减法运算：
a = 20;
b = 5;
c = a - b;
disp(c);
这个代码将输出15，因为a和b的值相减得到15，然后将结果赋给变量c。
乘法运算：
a = 3;
b = 4;
c = a * b;
disp(c);
这个代码将输出12，因为a和b的值相乘得到12，然后将结果赋给变量c。
除法运算：
a = 10;
b = 2;
c = a / b;
disp(c);
这个代码将输出5，因为a除以b得到5，然后将结果赋给变量c。
需要注意的是，在进行除法运算时，如果除数为0，则会出现错误，需要避免这种情况的发生。
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广西科技大学MATLAB课程设计说明书课题：设计简易计算器开发环境：MATLAB GUIDE作者：系别：专业：时间：实验目的:1、熟悉MATLAB的主要控件使用方法。
2、熟悉MATLAB的GUI设计流程。
实验环境:编程软件：MATLAB7.0实验内容与结果：使用MATLAB的GUI接口设计一个简单的计算器。
效果图:一、布局GUI。
1.打开Matlab，输入Guide 回车或者在工具栏上点击图标出现Guide 窗口：2.然后双击“Blank GUI(Default)”出现GUI窗口3.添加按钮4.根据按钮的作用及视觉效果做一定的修改把按钮的字符串大小、颜色进行设置，对按钮的位置进行排布，尽量使按钮集中在静态文本框下面。
最终设置的静态文本框为白色，其他按钮均为分红色。
5.保存、添加功能函数把做好的按钮及静态文本框保存后自动弹出Editor的M文本，对然后对相应的pushbutton添加功能函数。
以下是相应按钮的功能函数。
（1）数字按键编写。
在function pushbutton1_Callback(hObject, eventdata, handles）下输入：textString = get(handles.text1,'String');textString =strcat(textString,'0');set(handles.text1,'String',textString)这是使用句柄handles指向对象text1，并以字符串形式来存储数据文本框text1的内容，并存储数个“0”，然后由set(handles.text1,'String','textString'在text1中输出。
同理，分别在function pushbutton2~10_Callback(hObject, eventdata, handles）下给1~9数字按键下编写此类程序。
（2）.符号键：function pushbutton12_Callback(hObject, eventdata, handles)textString = get(handles.text1,'String');textString =strcat(textString,'+');set(handles.text1,'String',textString)strcat的作用是将两个字符串连接起来，就是在已输入的存储数据textString 后添加“+”进行运算。
然后执行set(handles.text1,'String',textString)。
符号键‘-’、‘*’、‘/’与‘+’的运算函数类似。
“平方运算”,主要是由“^2”功能实现。
（3）运算符“=”的编程：textString = get(handles.text1,'String');ans =eval(textString);“eval”的作用是将符号表达式转换成数值表达式。
再由set(handles.text1,'String',ans)输出。
（4）按键“back”编程：即显示一个空字符：set(handles.text1,'String','') ;按键“back”编程:textString = get(handles.text1,'String');set(handles.text1,'String','') ;ss=char(textString);n=length(textString);textString=ss(1:w-1);%将w个字符串转成w-1个，即删除了末位字符set(handles.text1,'String',textString)（5）按键“清空”：把静态文本框的字符清空，返回一个空格set(handles.text1,'String','')（6）按键“退出”:关闭计算器close(gcf);二、计算器的使用加法运算（+）：按“=”后显示平方运算：按“=”后显示附各按键的程序源代码：function pushbutton1_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'0')set(handles.text1,'String',textString)function pushbutton2_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'1')set(handles.text1,'String',textString)function pushbutton3_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'2')set(handles.text1,'String',textString)function pushbutton4_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'3')set(handles.text1,'String',textString)function pushbutton5_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'4')set(handles.text1,'String',textString)function pushbutton6_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'5')set(handles.text1,'String',textString)function pushbutton7_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'6')set(handles.text1,'String',textString)function pushbutton8_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'7')set(handles.text1,'String',textString)function pushbutton9_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'8')set(handles.text1,'String',textString)function pushbutton10_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'9')set(handles.text1,'String',textString)function pushbutton11_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'+')set(handles.text1,'String',textString)function pushbutton12_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'-')set(handles.text1,'String',textString)function pushbutton13_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'*')set(handles.text1,'String',textString)function pushbutton14_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'/')set(handles.text1,'String',textString)function pushbutton15_Callback(hObject, eventdata, handles)textString=get(handles.text1,'String')textString=strcat(textString,'.')set(handles.text1,'String',textString)function pushbutton16_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')s=eval(textString)set(handles.text1,'String',s)function pushbutton17_Callback(hObject, eventdata, handles) textString=get(handles.text1,'String')textString=strcat(textString,'^2')set(handles.text1,'String',textString)function pushbutton18_Callback(hObject, eventdata, handles)% hObject handle to pushbutton18 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) textString=get(handles.text1,'String')w=length(textString)t=char(textString)textString=t(1:w-1)set(handles.text1,'String',textString)function pushbutton19_Callback(hObject, eventdata, handles)set(handles.text1,'String','')function pushbutton20_Callback(hObject, eventdata, handles)% hObject handle to pushbutton20 (see GCBO)% eventdata reserved - to be defined in a future version of MATLAB % handles structure with handles and user data (see GUIDATA) close(gcf);三、设计心得及体会:略.。