reftex: Using \eqref

 
 3.4.5 Using ‘\eqref’
 --------------------
 
 Another case where one only wants to change the information associated
 with the label category is to change the macro which is used for
 referencing the label.  When working with the AMS-LaTeX, you might
 prefer ‘\eqref’ for doing equation references.  Here is how to do this:
 
      (setq reftex-label-alist '((nil ?e nil "~\\eqref{%s}" nil nil)))
 
    RefTeX has also a predefined symbol for this special purpose.  The
 following is equivalent to the line above.
 
      (setq reftex-label-alist '(AMSTeX))
 
    Note that this is automatically done by the ‘amsmath.el’ style file
 of AUCTeX (SeeStyle Files); so if you use AUCTeX, this
 configuration will not be necessary.