CAS command question

[Han]

If you want a non-CAS program that does lhs and rhs:

Code:

EXPORT lhs(s)
BEGIN
  CAS.left(EVAL("'" + s + "'"));
END;

EXPORT rhs(s)
BEGIN
  CAS.right(EVAL("'" + s + "'"));
END;

lhs("x+y<4") returns x+y as desired