From 1c6cabdf0f28f33233de20e719fd24744fd04cad Mon Sep 17 00:00:00 2001
From: Edward Zhang <ezhang8@cs.washington.edu>
Date: Mon, 25 Dec 2023 23:17:44 -0800
Subject: [PATCH] minor bug/doc fixes

---
 src/attitude-utils.cpp | 4 ++--
 src/io.cpp             | 2 +-
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/attitude-utils.cpp b/src/attitude-utils.cpp
index 9921a0e4..ce08be3f 100644
--- a/src/attitude-utils.cpp
+++ b/src/attitude-utils.cpp
@@ -202,7 +202,7 @@ decimal Vec3::operator*(const Vec3 &other) const {
     return DECIMAL_FMA(x,other.x, DECIMAL_FMA(y,other.y, z*other.z));
 }
 
-/// Dot product
+/// Vector-Scalar multiplication
 Vec2 Vec2::operator*(const decimal &other) const {
     return { x*other, y*other };
 }
@@ -217,7 +217,7 @@ Vec2 Vec2::operator+(const Vec2 &other) const {
     return {x + other.x, y + other.y };
 }
 
-/// Usual vector addition
+/// Usual vector subtraction
 Vec2 Vec2::operator-(const Vec2 &other) const {
     return { x - other.x, y - other.y };
 }
diff --git a/src/io.cpp b/src/io.cpp
index 389f14cc..e385190b 100644
--- a/src/io.cpp
+++ b/src/io.cpp
@@ -109,7 +109,7 @@ const Catalog &CatalogRead() {
         std::sort(catalog.begin(), catalog.end(), [](const CatalogStar &a, const CatalogStar &b) {
             return a.spatial.x < b.spatial.x;
         });
-        for (int i = catalog.size(); i > 0; i--) {
+        for (int i = catalog.size()-1; i > 0; i--) {
             if ((catalog[i].spatial - catalog[i-1].spatial).Magnitude() < DECIMAL(5e-5)) { // 70 stars removed at this threshold.
                 if (catalog[i].magnitude > catalog[i-1].magnitude) {
                     catalog.erase(catalog.begin() + i);