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benjoffe

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  1. A faster is_leap_year function (full-range, C++) (benjoffe.com)
    2 points 2
  2. Show HN: A faster day-count to Y,M,D algorithm – 30-40% speedup (benjoffe.com)

    Converting that integer to a Year, Month and Day is a fundamental calculation made in almost all programming languages and standard libraries. It runs every time a date is displayed, whether it's in a user interface,…

    3 points 0
  3. A Fast 64-Bit Date Algorithm (30–40% faster by counting dates backwards) (benjoffe.com)
    395 points 35
  4. A New Faster Algorithm for Gregorian Date Conversion (benjoffe.com)
    5 points 1
  5. The Smoital System – A method of timekeeping on Mars based on UTC (benjoffe.com)
    2 points 1
  6. Show HN: Weekle – a web app to learn how to calculate the day of the week (benjoffe.com)

    Mentally calculating the day-of-the-week for any date in history sounds like an impossible task for a normal person, but the algorithm is actually pretty simple to learn. Although there are tutorials for this elsewhere…

    122 points 31
  7. NASA launches $35,000 bounty for improved asteroid detection algorithms (nasa.gov)
    53 points 13
  8. The Scientific Case for P≠NP (scottaaronson.com)
    6 points 0
  9. The Unitarihedron: The Jewel at the Heart of Quantum Computing (scottaaronson.com)
    76 points 47
  10. New $80 million accelerator for tech start-ups launches (Australia) (startupsmart.com.au)
    1 points 0
  11. Next Australian census primarily online - "savings will amount to $100 million" (canberratimes.com.au)
    1 points 0
  12. Is it well known that we need to redefine well known? (blog.computationalcomplexity.org)
    1 points 0
  13. Intellectual property - Patents against prosperity (economist.com)
    3 points 0
  14. Suggestion for tweaking reddit interface (reddit.com)
    1 points 1
  15. Authors@Google: Garry Kasparov (youtube.com)

    I'm only half way through this, but it's an interesting talk, he speaks about the importance of intuition in decision making and how some human/man combinations can be more powerful at certain decision than either in…

    4 points 0
  16. Ask HN: How does one get access to flight data?

    I'm toying with the idea of creating (another) travel site, I'm just wondering if anyone has any advice on the best way to get accurate flight schedules and prices. Cheers,

    3 points 1