What is the purpose of "inputdlg"?

[EDIT: 20110722 11:30 CDT - reformat - WDR]

I'm understanding a MATLAB code starting with following lines.

dlgtitle = 'parameter ';
no = 1;
prompt = {'a', 'b'};
value = {'1', '2'};
answer = inputdlg(prompt, dlgtitle, no, value, 'on');
answer_str = char(answer);
c = str2num(answer_str(1,:));
d = str2num(answer_str(2,:));

However, I'm not familliar with "inputdlg".

Is there someone who can explain the meaning of the program line by line, and the purpose of "inputdlg"?

Answer 1

[Gerd]

help inputdlg

The command is used to get an input from the user.

Answer 2

[Robert Cumming]

also - step through the code line by line to understand whats its doing - use the help to look at the other commands.