8 files changed, 97 insertions, 0 deletions
diff --git a/challenge-170/polettix/blog.txt b/challenge-170/polettix/blog.txt
new file mode 100644
index 0000000000..a61ee5d50d
--- /dev/null
+++ b/challenge-170/polettix/blog.txt
@@ -0,0 +1 @@
+https://github.polettix.it/ETOOBUSY/2022/06/22/primorial-numbers/
diff --git a/challenge-170/polettix/blog1.txt b/challenge-170/polettix/blog1.txt
new file mode 100644
index 0000000000..66f42053de
--- /dev/null
+++ b/challenge-170/polettix/blog1.txt
@@ -0,0 +1 @@
+https://github.polettix.it/ETOOBUSY/2022/06/23/kronecker-product/
diff --git a/challenge-170/polettix/perl/ch-1.pl b/challenge-170/polettix/perl/ch-1.pl
new file mode 100644
index 0000000000..d0a216094e
--- /dev/null
+++ b/challenge-170/polettix/perl/ch-1.pl
@@ -0,0 +1,15 @@
+#!/usr/bin/env perl
+use v5.24;
+use warnings;
+use experimental 'signatures';
+no warnings 'experimental::signatures';
+
+use ntheory 'next_prime';
+
+my $it = primorial_it();
+say $it->() for 1 .. shift || 10;
+
+sub primorial_it ($n = 1, $p = 1) {
+ # sub { (($p, $n) = ($p * $n, next_prime($n)))[0] };
+   sub { ($p, $n) = ($p * $n, next_prime($n)); $p };
+}
diff --git a/challenge-170/polettix/perl/ch-2.pl b/challenge-170/polettix/perl/ch-2.pl
new file mode 100644
index 0000000000..cac2e4ae8c
--- /dev/null
+++ b/challenge-170/polettix/perl/ch-2.pl
@@ -0,0 +1,12 @@
+#!/usr/bin/env perl
+use v5.24;
+use warnings;
+use experimental 'signatures';
+no warnings 'experimental::signatures';
+
+use Math::Matrix;
+
+my $A = Math::Matrix->new([1, 2], [3, 4]);
+my $B = Math::Matrix->new([5, 6], [7, 8]);
+my $K = $A->kron($B);
+$K->print("K\n");
diff --git a/challenge-170/polettix/perl/cpanfile b/challenge-170/polettix/perl/cpanfile
new file mode 100644
index 0000000000..839d945912
--- /dev/null
+++ b/challenge-170/polettix/perl/cpanfile
@@ -0,0 +1,2 @@
+requires 'ntheory';
+requires 'Math::Matrix';
diff --git a/challenge-170/polettix/perl/cpanfile.snapshot b/challenge-170/polettix/perl/cpanfile.snapshot
new file mode 100644
index 0000000000..de1b13e9e6
--- /dev/null
+++ b/challenge-170/polettix/perl/cpanfile.snapshot
@@ -0,0 +1,47 @@
+# carton snapshot format: version 1.0
+DISTRIBUTIONS
+  Math-Matrix-0.94
+    pathname: P/PJ/PJACKLAM/Math-Matrix-0.94.tar.gz
+    provides:
+      Math::Matrix 0.94
+    requirements:
+      Carp 0
+      ExtUtils::MakeMaker 6.58
+      Math::Trig 1.06
+      Scalar::Util 1
+  Math-Prime-Util-0.73
+    pathname: D/DA/DANAJ/Math-Prime-Util-0.73.tar.gz
+    provides:
+      Math::Prime::Util 0.73
+      Math::Prime::Util::ChaCha 0.73
+      Math::Prime::Util::Entropy 0.73
+      Math::Prime::Util::MemFree 0.73
+      Math::Prime::Util::PP 0.73
+      Math::Prime::Util::PrimeArray 0.73
+      Math::Prime::Util::PrimeIterator 0.73
+      ntheory 0.73
+    requirements:
+      Carp 0
+      Config 0
+      Exporter 5.57
+      ExtUtils::MakeMaker 0
+      Math::BigFloat 1.59
+      Math::BigInt 1.88
+      Math::Prime::Util::GMP 0.50
+      Tie::Array 0
+      XSLoader 0.01
+      base 0
+      constant 0
+      perl 5.006002
+  Math-Prime-Util-GMP-0.52
+    pathname: D/DA/DANAJ/Math-Prime-Util-GMP-0.52.tar.gz
+    provides:
+      Math::Prime::Util::GMP 0.52
+    requirements:
+      Carp 0
+      Exporter 5.57
+      ExtUtils::MakeMaker 0
+      Fcntl 0
+      XSLoader 0.01
+      base 0
+      perl 5.006002
diff --git a/challenge-170/polettix/raku/ch-1.raku b/challenge-170/polettix/raku/ch-1.raku
new file mode 100644
index 0000000000..40fd20e825
--- /dev/null
+++ b/challenge-170/polettix/raku/ch-1.raku
@@ -0,0 +1,5 @@
+#!/usr/bin/env raku
+use v6;
+sub MAIN (Int:D $n where * > 0 = 10) {
+   .put for (1 .. *).grep({$_ == 1 || .is-prime}).produce(&[*]).[^$n];
+}
diff --git a/challenge-170/polettix/raku/ch-2.raku b/challenge-170/polettix/raku/ch-2.raku
new file mode 100644
index 0000000000..1e7d0c1559
--- /dev/null
+++ b/challenge-170/polettix/raku/ch-2.raku
@@ -0,0 +1,14 @@
+#!/usr/bin/env raku
+use v6;
+sub MAIN {
+   .say for kronecker-product([ <1 2>, <3 4> ],
+                              [ <5 6>, <7 8> ]);
+}
+
+sub kronecker-product (@a, @b) {
+   (@a X @b).map(->(@A, @B) { @A X* @B });
+}
+
+sub kronecker_product (@a, @b) {
+   (@a X @b).map: { .[0].list X* .[1].list };
+}