Heronian triangles: Difference between revisions

m
→‎{{header|Perl 6}}: added .race for concurrency
m (→‎using SQRT table: updated a comment in the REXX section header)
m (→‎{{header|Perl 6}}: added .race for concurrency)
Line 3,261:
 
=={{header|Perl 6}}==
{{works with|rakudoRakudo|2015-10-262018.09}}
<lang perl6>sub hero($a, $b, $c) {
my $s = ($a + $b + $c) / 2;
my $a2 = ($s * ($s - $a) * ($s - $b) * ($s - $c)).sqrt;
$a2.sqrt;
}
Line 3,285 ⟶ 3,284:
sub MAIN ($maxside = 200, $first = 10, $witharea = 210) {
my @h = sort gather;
for (1 .. $maxside).race.map: -> $c {
for 1 .. $c -> $b {
for $c - $b + 1 .. $b -> $a {
if primitive-heronian-area($a,$b,$c) -> $area {
take@h.push: [$area, $a+$b+$c, $c, $b, $a];
}
}
}
}
}
 
@h = @h.sort;
say "Primitive Heronian triangles with sides up to $maxside: ", +@h;
 
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