From 57bf1ad3c78aef694c13363598360ef0f6c0d6a1 Mon Sep 17 00:00:00 2001
From: "Eric S. Raymond" <esr@thyrsus.com>
Date: Wed, 24 Apr 2019 09:30:58 -0400
Subject: [PATCH] Correct sgn().

---
 sst.py | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/sst.py b/sst.py
index 8e14eb2..b8e7985 100755
--- a/sst.py
+++ b/sst.py
@@ -119,8 +119,8 @@ class JumpOut(Exception):
 
 class Coord:
     def __init__(self, x=None, y=None):
-        self.i = x
-        self.j = y
+        self.i = x	# Row
+        self.j = y	# Column
     def valid_quadrant(self):
         return self.i >= 0 and self.i < GALSIZE and self.j >= 0 and self.j < GALSIZE
     def valid_sector(self):
@@ -164,12 +164,12 @@ class Coord:
         if self.i == 0:
             s.i = 0
         elif s.i < 0:
-            s.i =-1
+            s.i = -1
         else:
             s.i = 1
         if self.j == 0:
             s.j = 0
-        elif s.j < 0:
+        elif self.j < 0:
             s.j = -1
         else:
             s.j = 1
-- 
2.31.1