4 ms·

Use Int types for programming logic.

• saagarjha 7y ago
  Except when, you know, you can’t.
  • umanwizard 7y ago
    Curious, when can't you? My mental model of floating-point types is that they are useful for scientific/numeric computations where values are sampled from a probability distribution and there is inherently noise, and not really useful for discrete/exact logic.
    • saagarjha 7y ago
      Right; for the former integer arithmetic won't do.
      • umanwizard 7y ago
        Yep, absolutely (and increasingly often people are using 16-bit floats on GPUs to go even faster). But the person you replied to said programming logic, not programming anything. Honestly I think if you care about the difference between `<` and `<=`, or if you use `==` ever, it's a red flag that floating-point numbers might be the wrong data type.