Compares values of objects A and B, and return true if they are equal, and false – if not.
Example:
(EQUAL 6 3) ; 0
(EQUAL ‘(a b c) ‘(a c b) ) ; 0
(EQUAL ‘(a b c) ‘(a b c) ) ; 1
(EQUAL “string” “string” ) ; 1
( = “string” “sTring” ) ; 0, alternative way
( == “string” “str” ) ; 0, alternative way