#!F-adobe-helvetica-medium-r-normal--18*
#!N 
#!CNavyBlue 
#!N  #!Rmacrdef Defining Macros #!N #!EC #!N #!N  #!F-adobe-times-medium-i-normal--18*   Macros #!EF 
are higher level processing functions that are constructed from simpler ones. 
A macro definition consists of two parts: #!N #!I0 #!N  #!F-adobe-times-medium-r-normal--18*   
#!N #!N #!I30 #!N o A macro header #!N #!I30 #!N 
o A macro body #!N #!I0 #!N #!EF #!N #!N #!N 
The following sections define these parts. #!N #!N #!N  #!F-adobe-times-medium-i-normal--18*   Next 
Topic #!EF #!N #!N  #!Lall544,dxall545 h Macro Header  #!EL  #!N  #!F-adobe-times-medium-i-normal--18*   #!N 
