On 9 Nov 2023, at 21:21, Marco Antoniotti <marco.antoniotti@unimib.it> wrote:

<problem-loop.lisp>


From the start, it looks like the ulp is more precise in C:


sbcl:   2.220446049250313d-16
clang: 2.2204460492503130808e-16

(using %.20g instead of %.20f)

Or perhaps it’s only the display procedure that truncates in lisp?

-- 
__Pascal J. Bourguignon__