$_ = "1.0 and 2.4 and 310 and 4.7 and so on";
@a = m/([\d|\.]+)\D+/g;
print "@a\n";

#result
#1.0 2.4 310 4.7

##</code><code>##

$_ = "1.0 and 2.4 and 310 and 4.7 and so on";
@a = ($_ =~ m/([\d|\.]+)\D+/g);
print "@a\n";

#result
#1.0 2.4 310 4.7