add space in math mode latex code example

Example 1: latex space in math mode

\; - a thick space.
\: - a medium space.
\, - a thin space.
\! - a negative thin space.

Example 2: give space in latex

Horizontal \hspace{1cm} spaces can be inserted manually. Useful 
to control the fine-tuning in the layout of pictures.

Left Side \hfill Right Side