Compares arguments for numerical equality
(= numstr [numstr] ...)
T, if all arguments are numerically equal; otherwise nil . If only one argument is supplied, = returns T.
(= 4 4.0) returns T
(= 20 388) returns nil
(= 2.4 2.4 2.4) returns T
(= 499 499 500) returns nil
(= "me" "me") returns T
(= "me" "you") returns nil