MathGroup Archive 2000

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  • To: mathgroup at
  • Subject: [mg23648] implementation
  • From: "Matt Herman" <Henayni at>
  • Date: Sun, 28 May 2000 23:09:00 -0400 (EDT)
  • Sender: owner-wri-mathgroup at


For number theoretic purposes,  Iwant to implement the following 
a0=Floor[(m0+Sqrt[D])/q0], m1=a0q0-m0, q1 = (D-(m1)^2)/q0
an=Floor[(mn+Sqrt[D])/qn],mn+1=an+qn-mn, qn+1=qn-1+an-1(mn-mn+1)

here an = a sub n etc... mn+1= m sub n+1.
When I try to implement these in mathematica, it wont allow me to use 
f[(a_+Sqrt[D_])/q_)]:= ....
I keep getting errors.

anyone have any ideas?


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