How to create Input dialog box in matlab? -

i want create input dialog box in matlab. performing simple addition operation in matlab. 2 variables name, , b needed given user , performing addition c=a+b; , display in output. both , b should positive integer only. tried following:

    = inputdlg({'enter positive integer (a)'});          b = inputdlg({'enter positive integer (b)'});             c=a+b; 

but giving following error:

undefined function or method 'plus' input arguments of type 'cell'.

please suggest how can code above program in described way.

that's because output of inputdlg cell array containing string; here 1-cell array.

hence need access content of cell array perform operation; example using {curly brackets} : {a} , {b}.

in case, since asking use number, need convert output, string, actual number matlab can use using instance str2double, operates on cell arrays

c = str2double(a) + str2double(b)