calculater.m

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function varargout = calculater(varargin)
% CALCULATER M-file for calculater.fig
%      CALCULATER, by itself, creates a new CALCULATER or raises the existing
%      singleton*.
%
%      H = CALCULATER returns the handle to a new CALCULATER or the handle to
%      the existing singleton*.
%
%      CALCULATER('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in CALCULATER.M with the given input arguments.
%
%      CALCULATER('Property','Value',...) creates a new CALCULATER or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before calculater_OpeningFunction gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to calculater_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 calculater

% Last Modified by GUIDE v2.5 12-Nov-2004 22:01:23

% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @calculater_OpeningFcn, ...
                   'gui_OutputFcn',  @calculater_OutputFcn, ...
                   'gui_LayoutFcn',  [] , ...
                   'gui_Callback',   []);
if nargin & isstr(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 calculater is made visible.
function calculater_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 calculater (see VARARGIN)

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

% Update handles structure
guidata(hObject, handles);

% UIWAIT makes calculater wait for user response (see UIRESUME)
% uiwait(handles.figure1);


% --- Outputs from this function are returned to the command line.
function varargout = calculater_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)
 connectstr
% --- 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)
 connectstr

% --- 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)
 connectstr

% --- 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)
 connectstr

% --- 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)
 connectstr

% --- 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)
 connectstr

% --- 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)
 connectstr

% --- 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)
 connectstr

% --- 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)

 connectstr
% --- 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)
 connectstr

function pushbutton11_Callback(hObject, eventdata, handles)
 % --- Executes on button press in pushbutton11.
% hObject    handle to pushbutton11 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
 connectstr

% --- Executes on button press in pushbutton12.
function pushbutton12_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton12 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
operator

% --- Executes on button press in pushbutton9.
function pushbutton13_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)
operator

function pushbutton14_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton17 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
operator
% --- Executes during object creation, after setting all properties.
function screen_CreateFcn(hObject, eventdata, handles)
% hObject    handle to screen (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
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end






% --- Executes on button press in pushbutton15.
function pushbutton15_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton15 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
operator


% --- Executes on button press in pushbutton16.
function pushbutton16_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton16 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
operator
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)
 clearscreen
% eventdata  reserved - to be defined in a future version of MATLA
% --- Executes on button press in pushbutton17.
function pushbutton19_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton17 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
global str1
global str2
global mutex
global x
global y
global s
y=str2num(str2)
switch s
    case '+' 
        x=x+y
    case '-'
        x=x-y
    case '*'
        x=x*y
    case '/'
        x=x/y
    case 'power'
        x=power(x,y)
         case 'sqrt' 
        x=sqrt(x)
     case 'log' 
        x=log(x) 
     case 'exp' 
        x=exp(x)     
    otherwise('unknown  OP')
end      
str1=num2str(x)
h=findobj('tag','screen')
set(h,'string',str1)
mutex=2
function pushbutton21_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton17 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
operator
% --- Executes on button press in pushbutton22.
function pushbutton22_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton22 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
operator
function pushbutton17_Callback(hObject, eventdata, handles)
% hObject    handle to pushbutton17 (see GCBO)
% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
operator;
function screen_CreateFcn(hObject, eventdata, handles)
% hObject    handle to screen (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
    set(hObject,'BackgroundColor','white');
else
    set(hObject,'BackgroundColor',get(0,'defaultUicontrolBackgroundColor'));
end

global x
global str1
global mutex
x=log(x)
str1=num2str(x)
h=findobj('tag','screen')
set(h,'string',str1)

function operator()
global x
global y
global s
global str1
global str2
global mutex
x=str2num(str1)
h=findobj(gco)
y=str2num(str2)
  switch s
    case '+' 
        x=x+y
    case '-'
        x=x-y
    case '*'
        x=x*y
    case '/'
        x=x/y
    case 'power'
        x=power(x,y)
    case 'sqrt' 
        x=sqrt(x)
     case 'log' 
        x=log(x) 
     case 'exp' 
        x=exp(x)     
    otherwise('unknown  structor')
  end      
str1=num2str(x)
   h1=findobj('tag','screen')
   set(h1,'string',str1)  
   s=get(h,'string')
   str2='0'
   mutex=0
 
   
   
function connectstr() 
global str1
global str2
global mutex
h=findobj('tag','screen')
h1=findobj(gco)
v=get(h,'string')
r=get(h1,'string')
 if mutex==2
   clearscreen
 end
if mutex==1
        v=get(h,'string')
        if v=='0'
         set(h,'string',' ')
         end
         str1=get(h,'string')
         str1=strcat(str1,r)
         set(h,'string',str1)
     else
        if str2=='0'
            set(h,'string',' ')
        end
         str2=get(h,'string')
         str2=strcat(str2,r)
         set(h,'string',str2)
   end
    

function clearscreen()
global str1
global str2
global s
global mutex
str1='0'
str2='0'
s=' '
mutex=1
h=findobj('tag','screen')
set(h,'string','0')