The matlab docs clearly specifies format long as 15 digits <http://www.mathworks.se/help/matlab/matlab_prog/display-format-for-numeric-values.html>. Julia usually prints 16 (or 17) digits for a call to rand().
This is a typical distribution of the number of digits from a `rand(1_000_000)` call (eg, length(x)-2, to remove the 0. prefix) 10 1 11 12 12 67 13 624 14 6708 15 66337 16 610505 17 282185 18 30420 19 2944 20 197 This (probably) means that most often Matlab prints a number that can't be parsed back to the same number. Code in gist <https://gist.github.com/ivarne/fe258ea95b9982827676> Ivar kl. 11:25:16 UTC+1 onsdag 5. november 2014 skrev Stefan Karpinski følgende: > > On Wed, Nov 5, 2014 at 2:48 AM, Jameson Nash <vtj...@gmail.com > <javascript:>> wrote: > >> fun fact: even with "format long", matlab doesn't always print enough >> digits to reconstruct the number >> > > Do you have an example? If true, this is rather horrifying. Is there > simply no way to print a true value from Matlab then? >
