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#!/usr/bin/perl
use 5.016;
use warnings;
...
    print "Original \@arr1 element: |$_| becomes (or remains as) ";
    say $_;
}

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C:\> 1071410.pl
0
1
...
Original @arr1 element: |43.02| becomes (or remains as) 43.02
Original @arr1 element: |1.03| becomes (or remains as) 1.03
Original @arr1 element: |1.0| becomes (or remains as) 1.0