‹ BackHN Continuity

Thread

More floating point alternatives

53 points · 51 comments · vismit2000

  1. klodolph · · focus · HN ↗
    Worth mentioning is storing the logarithm of the number.

    Seen it used in a couple places. Logarithmic depth buffer is one. Yamaha DX7 is another.

    1. vrighter · · focus · HN ↗
      how do you do FMAs then? You're making one operation cheaper, but making the other one expensive.
      1. klodolph · · focus · HN ↗
        “You’re making one operation cheaper, but making the other one more expensive” is the wrong way around. Say it this way: “You’re making one operation more expensive, but the other one cheaper.”
Open on Hacker News to reply ↗

Unofficial Hacker News client; not affiliated with Y Combinator.