
   Syntax       label %:= DIFFERENTIAL%{%(%&n&%)%} label

   Purpose      Isolates the &n&th differential in a derivative or the
                differential of an integral.  (See DERIVATIVE and
                INTEGRAL)

   Abbreviation         DIFF for DIFFERENTIAL

   %Example%

   þE : a + b*%D%[x|3,y|3](h(x,y))
   þF := DERIVATIVE E
   þG := DIFFERENTIAL(2) F
   G : y

   PROCEDURE Example(LABEL L, M) ;
     LABEL T ;
     T := INTEGRAL L ;
     M := DIFFERENTIAL T ;
   EXIT

