bug in ellminimalmodel()

["Prof. J. E. Cremona" <John.Cremona@maths.nottingham.ac.uk>]

After ellminimalmodel() the second coefficient should be in {-1,0,1}
but it isn't.  A second call to ellminimalmodel() does the trick.

John


                         GP/PARI CALCULATOR Version 2.2.11
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parisize = 10000000, primelimit = 1000000

gp > e=ellinit([1, -1, 1, -49952, 3713689]);
gp > ellminimalmodel(e)
%2 = [1, 2, 0, -615, 4615, ...

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