MATLAB Tutorial Calculator using GUIDE

Simple GUI program in MATLAB script using GUIDE tool.

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Source Code:

function varargout = myCalculator(varargin)
% MYCALCULATOR MATLAB code for myCalculator.fig
% MYCALCULATOR, by itself, creates a new MYCALCULATOR or raises the existing
% singleton*.
%
% H = MYCALCULATOR returns the handle to a new MYCALCULATOR or the handle to
% the existing singleton*.
%
% MYCALCULATOR(‘CALLBACK’,hObject,eventData,handles,…) calls the local
% function named CALLBACK in MYCALCULATOR.M with the given input arguments.
%
% MYCALCULATOR(‘Property’,’Value’,…) creates a new MYCALCULATOR or raises the
% existing singleton*. Starting from the left, property value pairs are
% applied to the GUI before myCalculator_OpeningFcn gets called. An
% unrecognized property name or invalid value makes property application
% stop. All inputs are passed to myCalculator_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 myCalculator

% Last Modified by GUIDE v2.5 13-Mar-2018 18:22:39

% Begin initialization code – DO NOT EDIT
gui_Singleton = 1;
gui_State = struct(‘gui_Name’, mfilename, …
‘gui_Singleton’, gui_Singleton, …
‘gui_OpeningFcn’, @myCalculator_OpeningFcn, …
‘gui_OutputFcn’, @myCalculator_OutputFcn, …
‘gui_LayoutFcn’, [] , …
‘gui_Callback’, []);
if nargin && ischar(varargin{1})
gui_State.gui_Callback = str2func(varargin{1});
end

if nargout
[varargout{1:nargout}] = gui_mainfcn(gui_State, varargin{:});
else
gui_mainfcn(gui_State, varargin{:});
end
% End initialization code – DO NOT EDIT
% — Executes just before myCalculator is made visible.
function myCalculator_OpeningFcn(hObject, eventdata, handles, varargin)
% 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 myCalculator (see VARARGIN)

% Choose default command line output for myCalculator
handles.output = hObject;

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes myCalculator wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% — Outputs from this function are returned to the command line.
function varargout = myCalculator_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 structure
varargout{1} = handles.output;
% — Executes on button press in pushbutton1.
function pushbutton1_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton1 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘1’]);
% — Executes on button press in pushbutton2.
function pushbutton2_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton2 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘2’]);
% — Executes on button press in pushbutton3.
function pushbutton3_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton3 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘3’]);

% — Executes on button press in pushbutton4.
function pushbutton4_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton4 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘4’]);

% — Executes on button press in pushbutton5.
function pushbutton5_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton5 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘5’]);
% — Executes on button press in pushbutton6.
function pushbutton6_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton6 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘6’]);

% — Executes on button press in pushbutton7.
function pushbutton7_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton7 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘7’]);

% — Executes on button press in pushbutton8.
function pushbutton8_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton8 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘8’]);

% — Executes on button press in pushbutton9.
function pushbutton9_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton9 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘9’]);

% — Executes on button press in pushbutton10.
function pushbutton10_Callback(hObject, eventdata, handles)
% hObject handle to pushbutton10 (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘0’]);

% — Executes on button press in pushbuttonClear.
function pushbuttonClear_Callback(hObject, eventdata, handles)
% hObject handle to pushbuttonClear (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, ”);

% — Executes on button press in pushbuttonPlus.
function pushbuttonPlus_Callback(hObject, eventdata, handles)
% hObject handle to pushbuttonPlus (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘+’]);

% — Executes on button press in pushbuttonMinus.
function pushbuttonMinus_Callback(hObject, eventdata, handles)
% hObject handle to pushbuttonMinus (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘-‘]);

% — Executes on button press in pushbuttonEqual.
function pushbuttonEqual_Callback(hObject, eventdata, handles)
% hObject handle to pushbuttonEqual (see GCBO)
% eventdata reserved – to be defined in a future version of MATLAB
% handles structure with handles and user data (see GUIDATA)

try

set(handles.text2, ‘String’, [get(handles.text2, ‘String’), ‘ = ‘, …
num2str(eval(get(handles.text2, ‘String’)))]);

catch

set(handles.text2, ‘String’, ‘Error!’);

end