3 ms·
To add to this, this is why we have those funny functions log1p() and expm1() in the standard library. To add micromorts: double add_micromorts(double x,
by klodolph 6y ago
To add to this, this is why we have those funny functions log1p() and expm1() in the standard library.
To add micromorts:
double add_micromorts(double x, double y) {
return -1e6 * expm1(
-log1p(x * 1e-6) - log1p(y * 1e-6)
);
}
This is not the most accurate way of doing things, it is much simpler to
return x + y - x * y * 1e-6;
But the formula with expm1 and log1p lets you easily do things like multiply 10 micromorts/day by 10.5 days.
- smabie 6y agoThey're mostly there for converting from log returns and back, but yeah they're good for any kind of probabilities as well.