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#!/usr/bin/perl -s
use v5.24;
use Test2::V0 '!float';
use PDL;
use experimental 'signatures';
our ($tests, $examples);
run_tests() if $tests || $examples; # does not return
die <<EOS unless @ARGV == 2;
usage: $0 [-examples] [-tests] [X Y]
-examples
run the examples from the challenge
-tests
run some tests
X Y
two vectors in any representation as accepted by the PDL
constructor, e.g. x1,x2,...
EOS
### Input and Output
say dot_product(@ARGV);
### Implementation
sub dot_product ($x, $y) {
(pdl($x) x pdl($y)->dummy(0))->sclr;
}
### Examples and tests
sub run_tests {
SKIP: {
skip "examples" unless $examples;
is dot_product([1, 2, 3], [4, 5, 6]), 32, 'example';
}
SKIP: {
skip "tests" unless $tests;
}
done_testing;
exit;
}
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