How to format the integer value with leading zeros in matlab?

Question

I want format integer value by adding leading zeros and display it as string. For example, I have 3 and I want to display it as 003. I want to do i

Answer 1

Use sprintf():

aa = sprintf('%03d', 3); % aa will be 003

Note that aa here is a string. Check out its documentation for more info.

Answer 2

Note that you can also use string formatting in num2str command as well:

num2str( 3, '%03d' );