It also doesn't feel right to me when I learned it for the first time. But if you know that "=" means "almost equal" when doing float comparision, it is very convenient in practical use. For example, if we want to compare two float variables.
In Red:
if float-1 = float-2 [
; do something
]
In other languages:
if (float-1 - float-2) < EPS {
// do something
}
Obviously, Red's way is more natural and readable. :)
Thank you for reminding us about those great articles! We were using a Ulp-based method only, but Qtxie proceeded with some improvements [1] for close to zero values, as suggested in the article. Thanks again. :-)
