set(handles.text3,'string', 'Bierge-Vieta');
    [initial,precision,max] = get_parameters2();
    equation = get(handles.input,'String');
    func = str2func(equation);
    [root,iterations,precision,execution_time,allroots,errors]  = Bierge(initial,precision,func,max);
    if(iterations == 0 && precision == 0)
         set(handles.text3,'string','No root In The Given Interval');
    else