Bill Allombert on Mon, 25 Oct 2021 18:49:26 +0200

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pari-2.13.3 (STABLE) released

Dear PARI lovers,

I would like to announce the release of pari-2.13.3 (STABLE). The sources
and Windows and MacOS binaries are available from

This is a BUGFIX release for the stable branch.
This release addresses significant problems that could be fixed in a
simple, harmless way. However we strongly encourage you to upgrade since
it fixes a number of cases where PARI was returning an incorrect result.


Thanks to all those who reported problems, on the mailing lists or through
our Bug Tracking System. ( See ), or
who tested the preleases.

Have fun,

  Bill and Karim

P.S: The Changelog:

Bug numbers refer to the BTS at

Done for version 2.13.3 (released 25/10/2021):
[last column crossreferences current development release 2.14.0]
     1- zeta(-2 + O(x)) => division by 0                                  [F25]
     2- (-1)^(-1/2) -> I instead of -I                                    [F56]
     3- GC error in ZX_Uspensky(, flag = 0)                               [F58]
BA   4- ellisomat(ell/nf not integral) -> oo-loop or wrong result         [F59]
BA   5- (f(~v)=v[1]=1);(g(v) = f(~v)); my(V=[0]);g(V);V -> [1] instead
         of [0] due to missing copy on write [#2304]                      [F60]
     6- hypergeom([1/12,1/12],2/3,3) -> wrong result                      [F61]
     7- overflow in mulu_interval(,ULONG_MAX) [#2309]                     [F62]
     8- ellE(1) -> domain error [#2312]                                   [F63]
     9- log1p(-1 + 10^-10) -> oo time                                     [F64]
    10- bernvec entries were wrong from B_{2*4064} on [#2311]             [F65]
    11- plotrecthraw for multi-curves                                     [F66]
    12- RgXn_powu(,,1) wrong result [#2314]                               [F67]
    13- erfc incorrect on negative imaginary axis [#2315]                 [F68]
    14- mfgalpoistype bug for dihedral types (when conductor at oo is not
        stable under Galois) [#2293]                                      [F69]
BA  15- [32bit] forfactored(n=223092868, 223092871, ) -> SEGV [#2318]     [F70]
    16- Fp_issquare(0, p) would return 0                                  [F71]