How to limit the user input to a specific range?

Hi, I want to print in the command prompt "Enter the length in meters" adding a limitation that the input must be between o to 10. If something falls outside the range, the sentence "Not a valid number. Please try again" will be displayed. I tried with the following but Matlab disregard the condition. How should I define it instead?

 while 1
    len = str2double(input('Enter the length in meters: ','s'));
    if len 
        break;
    end
    disp('Not a valid number. Please try again')
end

Thanks for your time.

Answer 1

[Geoff Hayes]

Valentina - your condition is

 if len

This will always be true if len is not zero. If you wish to restrict your length to the interval 0 and 10, then your condition would be

 if len >= 0 && len <= 10
    break;
 end

[Kundera]

Thank you. It works perfectly, but still I don't understand one thing. I want the range to include the ending 0 and 10. Using your code it works, but I don't see why of using the output 0. To me, if the input is 0, the condition len >= 0 should break and send me the 'Not a valid number. Please try again'. But it is not the case.

[Geoff Hayes]

But isn't 0 a valid length? From your original comment, that the input must be between o to 10. If 0 is invalid, then change your condition to

 if len > 0 && len <= 10
     break;
 end