#!/usr/bin/env perl
# [[[ PREPROCESSOR ]]]
# <<< EXECUTE_SUCCESS: "before loop" >>>
# <<< EXECUTE_SUCCESS: "$n = 0.6736455102" >>>
# <<< EXECUTE_SUCCESS: "$n = 0.9996951839" >>>
# <<< EXECUTE_SUCCESS: "$n = -0.7650690644" >>>
# <<< EXECUTE_SUCCESS: "after loop" >>>
# [[[ HEADER ]]]
use RPerl;
use strict;
use warnings;
our $VERSION = 0.001_000;
# [[[ CRITICS ]]]
## no critic qw(ProhibitUselessNoCritic ProhibitMagicNumbers RequireCheckedSyscalls)  # USER DEFAULT 1: allow numeric values & print operator
## no critic qw(RequireInterpolationOfMetachars)  # USER DEFAULT 2: allow single-quoted control characters & sigils
# [[[ OPERATIONS ]]]
print 'before loop', "\n";
my number_arrayref $n_array = [ sin( 17 / 23 ), cos( 42 / 1_701 ), -( sin 21.12 ) ];
foreach my number $n ( @{$n_array} ) {
    print '$n = ', $n, "\n";
}
print 'after loop', "\n";