On Thu, Sep 18, 2014 at 3:17 AM, Claude Pache <[email protected]> wrote: > Just tried in the console of Chrome (with "Experimental JavaScript features" > flag enabled). > > > Math.log2(8) > < 2.9999999999999996 > > Firefox gives me the correct answer (3). > > Question: Should Math.log2 give exact results for powers of 2? > > The same issue holds for Math.log10 (might be applicable for nonnegative > powers only): Math.log10(1e15) != 15 in Chrome.
I have no idea of the computation complexity underlying a log implementation, so given that: yes, it should totally give exact results for powers of 2, and log10 should do the same for (positive) powers of 10. (Negative powers of 10 can't actually be represented by a JS number, so there's no need to talk about them.) ~TJ _______________________________________________ es-discuss mailing list [email protected] https://mail.mozilla.org/listinfo/es-discuss
