MATLAB: Answer is not displayed on static text

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Im trying to solve the equation to get the value of M from it. Ive tested the equation in editor and it worked. But when i tried to make a gui calculator for this and entered the below code in gui editor…..the answer is not displayed. I dont know why it happened. My code is bold and underlined below.
((1)/(M)).*(((2)/(g+1)).*(1+((g-1)/(2)).*(M.^2))).^((g+1)/(2.*(g-1)))==T
this is the original equation. and i want the value of M from it and display it on static text provided values of other parameters.
function varargout = Test(varargin)
% TEST MATLAB code for Test.fig
%      TEST, by itself, creates a new TEST or raises the existing
%      singleton*.
%




%      H = TEST returns the handle to a new TEST or the handle to
%      the existing singleton*.
%
%      TEST('CALLBACK',hObject,eventData,handles,...) calls the local
%      function named CALLBACK in TEST.M with the given input arguments.
%
%      TEST('Property','Value',...) creates a new TEST or raises the
%      existing singleton*.  Starting from the left, property value pairs are
%      applied to the GUI before Test_OpeningFcn gets called.  An
%      unrecognized property name or invalid value makes property application
%      stop.  All inputs are passed to Test_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 Test
% Last Modified by GUIDE v2.5 08-Sep-2019 17:04:13
% Begin initialization code - DO NOT EDIT
gui_Singleton = 1;
gui_State = struct('gui_Name',       mfilename, ...
                   'gui_Singleton',  gui_Singleton, ...
                   'gui_OpeningFcn', @Test_OpeningFcn, ...
                   'gui_OutputFcn',  @Test_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 Test is made visible.
function Test_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 Test (see VARARGIN)
% Choose default command line output for Test
handles.output = hObject;
% Update handles structure
guidata(hObject, handles);
% UIWAIT makes Test wait for user response (see UIRESUME)
% uiwait(handles.figure1);
% --- Outputs from this function are returned to the command line.
function varargout = Test_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;
function edit1_Callback(hObject, eventdata, handles)
% hObject    handle to edit1 (see GCBO)

% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit1 as text
%        str2double(get(hObject,'String')) returns contents of edit1 as a double
input = str2double(get(hObject,'string'));
if(isempty(input))
    set(hObject,'string','0')
end;
% --- Executes during object creation, after setting all properties.

function edit1_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit1 (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 && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end
function edit2_Callback(hObject, eventdata, handles)
% hObject    handle to edit2 (see GCBO)

% eventdata  reserved - to be defined in a future version of MATLAB
% handles    structure with handles and user data (see GUIDATA)
% Hints: get(hObject,'String') returns contents of edit2 as text
%        str2double(get(hObject,'String')) returns contents of edit2 as a double
input = str2double(get(hObject,'string'));
if(isempty(input))
    set(hObject,'string','0')
end
if(input<1)
    msgbox(TotalPressureratiomustbegreaterthan1, Error)
end
% --- Executes during object creation, after setting all properties.
function edit2_CreateFcn(hObject, eventdata, handles)
% hObject    handle to edit2 (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 && isequal(get(hObject,'BackgroundColor'), get(0,'defaultUicontrolBackgroundColor'))
    set(hObject,'BackgroundColor','white');
end
% --- 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)
% ************** BOLD SECTION, BELOW *************************
g = get(handles.edit1,'string');
T = get(handles.edit2,'string');
syms M;
eqn = (((1)/(str2double(M))).*(((2)/(str2double(g)+1)).*(1+((str2double(g)-1)/(2)).*(str2double(M).^2))).^((str2double(g)+1)/(2.*(str2double(g)-1)))==str2double(T))
Ans = solve(eqn,M)
Mach = max(real(double(Ans)))
set(handles.text5,'string',Mach)
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