Interfaz en matlab, SUMA

function varargout = suma(varargin)
gui_Singleton = 1;
gui_State = struct('gui_Name', mfilename, ...
'gui_Singleton', gui_Singleton, ...
'gui_OpeningFcn', @suma_OpeningFcn, ...
'gui_OutputFcn', @suma_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
function suma_OpeningFcn(hObject, eventdata, handles, varargin)
handles.output = hObject;

guidata(hObject, handles);

function varargout = suma_OutputFcn(hObject, eventdata, handles)
varargout{1} = handles.output;



function numero1_Callback(hObject, eventdata, handles)
function numero1_CreateFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end



function numero2_Callback(hObject, eventdata, handles)
function numero2_CreateFcn(hObject, eventdata, handles)
if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
set(hObject,'BackgroundColor','white');
end


function sumar_Callback(hObject, eventdata, handles)
num1=get(handles.numero1,'String');
num2=get(handles.numero2,'String');

c=str2num(num1)+ str2num(num2);
set(handles.resultado,'String',c);
guidata(hObject,handles);