[Bug math/16507] New: large error on yn in long double precision

["zimmerma+gcc at loria dot fr" <sourceware-bugzilla at sourceware dot org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=16507

            Bug ID: 16507
           Summary: large error on yn in long double precision
           Product: glibc
           Version: unspecified
            Status: NEW
          Severity: normal
          Priority: P2
         Component: math
          Assignee: unassigned at sourceware dot org
          Reporter: zimmerma+gcc at loria dot fr

Created attachment 7374
  --> https://sourceware.org/bugzilla/attachment.cgi?id=7374&action=edit
test file

I get with the attached program:

GNU libc version: 2.18.90
GNU libc release: development
x=0xd.563c0f9f9f83a9cp+6
libc: yn(17,x)=0xf.c8abeb11cp-38
mpfr: yn(17,x)=0xf.c8abeb0ef945aedp-38
ulp difference: 745252115.000000

See http://webloria.loria.fr/~zimmerma/glibc/

Paul

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