Technical Difficulties from on Top of the Mountain: Lost by looking at the map.

Technical Difficulties from on Top of the Mountain

2013-09-30

Lost by looking at the map.

I'm not really sure what the real value of rosettacode.org is, but while looking at implementations for continued fractions in C++, my mind wandered down to the Perl 6 section and was sucked into a black hole:

Perl6 allows us to define a custom composition operator. We can then use it with the triangular reduction metaoperator, and map each resulting function with an infinite value for x.
sub infix:<⚬>(&f, &g) { -> $x { &f(&g($x)) } }
sub continued-fraction(@a, @b) { [\⚬] map { @a[$_] + @b[$_] / * }, 0 .. * }

I program a fair amount in Perl 5 and I don't recognize a thing here. I remember seeing a bit of an interview of Larry Wall, and he was talking about how much fun he was having posting code to rosettacode.org. I'm going to blame this one on him.

Labels: perl

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Life in the middle of nowhere, remote programming to try and support it, startups, children, and some tinkering when I get a chance.

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