Bill Allombert on Sat, 26 Dec 2009 00:39:40 +0100

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Re: Montgomery Square Root question

On Fri, Dec 25, 2009 at 10:03:08PM +1100, Kevin Acres wrote:
> One more question that I have is about Montgomery square roots.  Can 
> anyone tell me if this is supported natively by Pari/GP.
> Basically I'm trying to port a Magma SNFS example to Pari/GP and this 
> is about my last stumbling block.
> Currently the ported code works well for Gaussian integers, but I'm 
> trying to get the general case working as well.

I am not sure what Montgomery square roots exactly are, but you can
compute square roots over any number fields by computing the roots of
x^2-a with nfroots().