The calculation you are doing there is likely using the compiler's constants which are at least 256 bits wide (https://golang.org/ref/spec #Constants)
This displays the difference: https://play.golang.org/p/qNDzoh63LDk See also https://blog.golang.org/constants On Wed, 2018-08-29 at 19:33 -0700, José Colón wrote: > I read that a common way to demonstrate that floating point numbers > suffer > from approximation problems is by calculating this: > > 0.3 - 0.1 * 3 > > which should produce 0 but in Java, Python, and Javascript for > example, > they produce -5.551115123125783e-17 . > > Surprisingly (or not, ;) ), Go produces the correct 0 result! I > wonder why > is this so? Is it some higher precision being used versus these > other > languages? Or is it some extra correcting logic behind the scenes? > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. To unsubscribe from this group and stop receiving emails from it, send an email to golang-nuts+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
