Just a bit of evangelism.
Original post of drawing Ulam's spiral of primes:
http://users.softlab.ece.ntua.gr/~ttsiod/primes.html
the Python code:
https://github.com/ttsiodras/PrimeSpirals/blob/master/primeSpirals.py
Direct translation to D:
https://gist.github.com/thedeemon/8295146
Result is somewhat shorter and two orders of magnitude faster
even with the same very very slow and unoptimal algorithm. And,
it seems, 2x faster than PyPy and Shedskin that do pretty much
the same thing.
http://www.reddit.com/r/programming/comments/1ujoyk/the_ulam_spiral_python_50x_speedup_with_pypy/
