acos() bug

[Michael Somos <somos@grail.cba.csuohio.edu>]

                    GP/PARI CALCULATOR Version 2.0.17 (beta)
                i686 running linux (ix86 kernel) 32-bit version
              (readline v2.2 enabled, extended help not available)

                           Copyright (C) 1989-1999 by
          C. Batut, K. Belabas, D. Bernardi, H. Cohen and M. Olivier.

Type ? for help, \q to quit.
Type ?12 for how to get moral (and possibly technical) support.

   realprecision = 28 significant digits
   seriesprecision = 16 significant terms
   format = g0.28

parisize = 4000000, primelimit = 500000
gp> \ps2
   seriesprecision = 2 significant terms
gp> acos(x)
%1 = 1.570796326794896619231321691 - x + O(x^2)
gp> \ps1
   seriesprecision = 1 significant terms
gp> acos(x)
  ***   segmentation fault: bug in GP (please report).

Shalom, Michael

-- 
Michael Somos <somos@grail.cba.csuohio.edu>     Cleveland State University
http://grail.cba.csuohio.edu/~somos/            Cleveland, Ohio, USA 44115