3 ms·

Sure, but division and multiplication add more decimal places. If you do a lot of calculations and you truncate or round every single intermediate result, round

Sure, but division and multiplication add more decimal places. If you do a lot of calculations and you truncate or round every single intermediate result, rounding errors may add up to unacceptable levels in some cases. So I wanted perform the caculations with high precision, then round the final result according to what the law requires.

twic 10y ago
Last time i did calculations in high finance, we used a (buggy, handrolled) 128-bit fixed-point type for exactly this reason.
- poikniok 10y ago
  Thankfully there is __int128 these days natively!
  - twic 10y ago
    Not in Java, sadly!