.he 'SUBSCRL''Page %'
.fo 'Steven Hardy'- % -'October 1977'
SUBSCRL	This function is used to access lists.
If the value of the variable L is a list then
 	: L(4) =>
.br
is equivalent to
 	: SUBSCRL(4, L) =>
.br
Try the following:
 	: [A B C D] -> L;
 	: L =>
 	: L(4) =>
 	: 4 -> L(2) =>
 	: L =>
 	: L(2) + 1 -> L(2);
 	: L =>
