I have several pictures in my document, using the subfigure environment, the code is the following:


Now, the size of the pictures will be the same for all of them. When I adjust their size, I don't want to change 0.22 to some other value for all of them. Can I define some variable? I tried with \newlength, but this register requires a unit of length.

  • Have you tried simply \newcommand{\sizeA}{0.22}?
    – Rmano
    Commented Apr 22, 2015 at 8:20
  • @Rmano That was really simple, it works, thanks!
    – wondering
    Commented Apr 22, 2015 at 8:36
  • 1
    If you use graphicx then I suggest you read the package documentation because it explains how to define defaults with \setkeys. Also see this presentation.
    – user10274
    Commented Apr 22, 2015 at 9:17

1 Answer 1


Simple solution:


and then


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