#decision making for nonnumeric data

$first = "Simon";
$last = "simple";

if ($first == $last) {
	print "The words are the same\n";
}  #it is true, why? == only work for numeric data

#Eq, Gt, Lt, Ge, Le, Ne
#work for nonnumeric values

if ($first eq $last) {
	print "The words are the same";
}  else {
	print "The words are different\n";
}


#logical operators
#&&, ||, 
$r = 10;
if (($r>=5) && ($r<=15)) {
	print '$r is ', "between 5 and 15\n";
} else {
	print '$r is ', "outside the range of 5 and 15\n";
}