   Syntax   {%IN% label} {%ON% iteration} %DISTRIBUTE% {%STRICTLY%} term 
         or {%IN% label} {%ON% iteration} %DISTRIBUTE% &operator& {%ON% term}

   Where        &operator& is :
                        %D% - Derivative operator (Ctrl D on keyboard)
                        %Ÿ% - Integral operator   (Ctrl K on keyboard)
                        %ä% - Summation operator  (Greek capital S)
                        %% - Product Operator    (Greek P on keyboard)
   Abbreviation     DIST for DISTRIBUTE
   Purpose      Distributes operators or terms.

   %Example%
   þE1 : %D%[x](f(x) + g(x))
   þDISTRIBUTE %D% ON x
   E1 : %D%[x](f(x)) + %D%[x](g(x))
   þE1 : %ä%{j=1,ì}(a[j] + b[j])
   E1 : %ä%{j=1,ì}(a[j]) + %ä%{j=1,ì}(b[j])

   PROCEDURE Example(LABEL L ; INDEX k) ;
     IN L DISTRIBUTE ä ON k ;
   EXIT
