From 3ddcb5d10988146345b31df2caee1b6a9755c600 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Niels=20M=C3=B6ller?= <nisse@lysator.liu.se>
Date: Tue, 14 Oct 2014 21:21:35 +0200
Subject: [PATCH] Note the Edwards curve neutral point.

---
 misc/ecc-formulas.tex | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/misc/ecc-formulas.tex b/misc/ecc-formulas.tex
index 6c61982d..bf06d110 100644
--- a/misc/ecc-formulas.tex
+++ b/misc/ecc-formulas.tex
@@ -138,7 +138,8 @@ For an Edwards curve, we consider the special case
 \begin{equation*}
   x^2 + y^2 = 1 + d x^2 y^2
 \end{equation*}
-See \url{http://cr.yp.to/papers.html#newelliptic}.
+See \url{http://cr.yp.to/papers.html#newelliptic}. The neutral point is
+$(0, 1)$.
 
 Affine formulas for addition, $(x_3, y_3) = (x_1, y_1) + (x_2,
 y_2)$:
-- 
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