Keep It Simple, Stupid PerlMonks

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Here's a first shot, 110 characters in body only -- lacks some error check (it's going to fail with anything less than two arguements), but if you consider the second arg to be 0, then that makes sense.. :-)
```use strict;

my @poly1 = ( 2, 4, 6 );
my @poly2 = ( 3, 1, 0 );
my @poly4 = ( 5, 2, 1, 2 );

my @poly3 = p( \@poly1, \@poly2, \@poly4 );

print (join',',@poly3)."\n";

my @poly5 = p( \@poly4, \@poly1, \@poly2 );
print (join',',@poly5)."\n";

sub p {
my\$a=shift;my\$b=shift;my(@c,\$i,\$j);for\$i(0..\$#\$a){for\$j(0..\$#\$b){\$c[
+\$i+\$j]+=\$\$a[\$i]*\$\$b[\$j]}};@_?p(\@c,@_):\@c
}

Update: Cut down 5 more characters to 105, since you don't need to have \$j around in the inner loop:

```sub p {
my\$a=shift;my\$b=shift;my(@c,\$i);for\$i(0..\$#\$a){for(0..\$#\$b){\$c[\$i+\$_
+]+=\$\$a[\$i]*\$\$b[\$_]}};@_?p(\@c,@_):\@c
}

Update #2 as per tilly's reply, fixed the return problem to add that extra character.

Dr. Michael K. Neylon - mneylon-pm@masemware.com || "You've left the lens cap of your mind on again, Pinky" - The Brain

In reply to Re: (Golf) Multiply polynomials by Masem
in thread (Golf) Multiply polynomials by tilly

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