Undefined operator '/' for input arguments of type 'cell'.

Please help me I am a beginner. This code gives me error kindly spot the issue

syms Area length  cost
prompt = {'Please Enter Value of Area in feet:'};

dlgtitle = 'Input Area';
dims = [1 45];
%k= input(prompt)
answer = inputdlg(prompt,dlgtitle,dims);
k = answer;
Area = k;

width = 20;
width = num2cell(width);

length = Area./width;
cost = 49.75.*length+ 30.*width; 

Answer 1

[Image Analyst]

Quite a few errors there. See below for the correct version:

% syms Area length  cost  % Not needed to declare as syms
prompt = {'Please Enter Value of Area in feet:'};
dialogTitle = 'Input Area ';
numLines = [1, 45];
userResponse = inputdlg(prompt, dialogTitle, numLines);
% Extract Area from the cell array.  It will be a character so we need to call str2double().
Area = str2double(userResponse{1});
% Compute the other things.
width = 20;
theLength = Area / width;
cost = 49.75 * theLength + 30 * width;
% Show user the results.
fprintf('Area = %f square feet.\nWidth = %f feet.\nLenth = %f feet.\nCost = $%f.\n',...
	Area, width, theLength, cost);

Don't declare as syms. Don't use the name of a built-in function, such as length, as a variable name.

[Salman Ahmed]

Thank you so much for Helping

Answer 2

[VBBV]

%rue
width = 20;
% width = num2cell(width);

Comment the num2cell line and try again

[Salman Ahmed]

its giving the same error again

[VBBV]

Did you clear the input variables after changes?

[VBBV]

Use str2num to convert the input valued to numeric before performing the ./ operation

[VBBV]

%true
width = 20;
width = num2cell(width)
length =str2num(Area)./str2num(width)
cost = 49.75.*length+30.*str2num(width)

[Salman Ahmed]

this works but value of length and width is set to NaN.

[VBBV]

What were your input values for Area ?

[VBBV]

Did it contained any characters?

%rue
 width = str2num(width);
cost = 49.75.*length+30.*(width)

[VBBV]

%true
width = 20;
width = num2cell(width)
Tlength =str2num(Area)./str2num(width)
cost = 49.75.*Tlength+30.*str2num(width)

Sorry, you have used builtin function length as variable to store values. Please change it to as above or something other than standard functions of matlab.

[Salman Ahmed]

I changed the name now it works fine thank you so much for helping