Re^2: Fibonacci golf with one state variable

Hey that's neat! Of course the memory usage is far from constant, but great idea. Good use of say to save a few.

Only nitpicks are that you do have explicit initialisation and the first output is zero which is not quite right. Oddly, I get no output unless I tweak it to print to STDERR which is some strange buffering difference - no idea why.

++ for thinking laterally :)

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Re^3: Fibonacci golf with one state variable by JavaFan (Canon) on Oct 05, 2008 at 13:21 UTC
Well, I'd argue that not outputting zero isn't quite right. Usually, the Fibonacci sequence is defined as F(0) = 0; F(1) = 1; F(n) = F(n-1) + F(n-2), n > 1. See for instance Sloane: The On-Line Encyclopedia of Integer Sequences and Graham, Knuth and Patashnik in Concrete Mathematics. Eric Weisstein defines the sequence as starting with F(1) = F(2) = 1 and then states it's conventional to define F(0) = 0.	[reply]
Re^4: Fibonacci golf with one state variable by aufflick (Deacon) on Oct 06, 2008 at 03:13 UTC
Can't fault your references!	[reply]