REAL
REAL, NSET
Sets the element real constant set attribute pointer. 
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Notes
Identifies the real constant set number to be assigned to subsequently defined elements. This
   number refers to the real constant set number (NSET) defined with the
   real constant sets (R). Real constant set numbers may be displayed
   (/PNUM). If the element type requires no real constants, this entry is
   ignored. Elements of different type should not refer to the same real constant set.