function varargout = bsp(varargin)

gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @bsp_OpeningFcn, ...
                   'gui_OutputFcn',  @bsp_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 bsp_OpeningFcn(hObject, eventdata, handles, varargin)

plot_Callback(handles.plot, eventdata, handles)

handles.output = hObject;
guidata(hObject, handles);





function varargout = bsp_OutputFcn(hObject, eventdata, handles) 

varargout{1} = handles.output;



function input_Callback(hObject, eventdata, handles)




function input_CreateFcn(hObject, eventdata, handles)

if ispc && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end



function plot_Callback(hObject, eventdata, handles)

a = str2double(get(handles.input,'string'));
syms x,
f = a*x^2;
handles.plot = ezplot(f);

handles.output = hObject;
guidata(hObject, handles);



function checkbox_Callback(hObject, eventdata, handles)
if get(hObject,'value')==1
    set(handles.plot,'visible','off')
else
    set(handles.plot,'visible','on')
end