On 2017-01-28 14:31, Eli Zaretskii wrote: >> Cc: 25557@debbugs.gnu.org >> From: Clément Pit--Claudel >> Date: Sat, 28 Jan 2017 14:14:03 -0500 >> >>>> I'm trying to get the shortest representation of a decimal number, rounded to .01, not using scientific/exponential notation. I'm using values computed in ELisp to produce CSS style sheets, which until recently didn't allow for exponential notation. I'd like these stylesheets to be readable, so 100% is better 100.00%, and 3.35em is better than 3.35004em. If my code is fed a value of 5000px, I don't want it converted to 5e+3px, because many browsers don't know how to parse that. >>> >>> Then I think you want to use %d for integral values and %.2f for the >>> rest. >> >> No, that still won't do: it wouldn't format 3.0 as "3", if I understand correctly. > > ??? (format "%d" 3.0) => "3" > > Or maybe you didn't think 3.0 was an "integral value" by my > definition? I meant by that any value VAL which yields zero when > passed through (mod VAL 1.0). Yup, I misunderstood your definition of integral value. But that still doesn't cover formatting e.g. 3.3 as "3.3" instead of "3.30", right?