IIRC, mpn is natural numbers (0 and positive integers), it is the base class of all Gmp operations. mpz is integers (positive _and_ negative :) ) mpq is rational numbers, p/q where p and q are mpn's, plus a sign mpf is floating point numbers with variable precision
/ Mirar
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2003-02-25 10:54: Subject: Re: Do we have a floatingpoint bug?
Perhaps even better; I am not overly familiar with either, from their present lack of autodocs. :-]
/ Johan Sundström (a hugging punishment!)