From 9b48f7342a1b357d9d53b164b436d227b4ddc008 Mon Sep 17 00:00:00 2001
From: Tanner Collin <git@tannercollin.com>
Date: Sat, 14 Mar 2026 13:43:05 -0600
Subject: [PATCH] fix: Set default angle mode to degrees and simplify error
 messages

---
 calculator/calculator.app.js | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/calculator/calculator.app.js b/calculator/calculator.app.js
index 6f18bb0..4a0f464 100644
--- a/calculator/calculator.app.js
+++ b/calculator/calculator.app.js
@@ -64,7 +64,7 @@ var scientificOperators = {
   'sin': {grid: [0, 0], val: 'sin'},
   'cos': {grid: [1, 0], val: 'cos'},
   'tan': {grid: [0, 1], val: 'tan'},
-  'angleMode': {grid: [1, 1], val: 'rad'},
+  'angleMode': {grid: [1, 1], val: 'deg'},
   'log': {grid: [0, 2], val: 'log'},
   'tenpow': {grid: [1, 2], val: '10^x'},
   'ln': {grid: [0, 3], val: 'ln'},
@@ -86,7 +86,7 @@ var operator = null;
 var results = null;
 var isDecimal = false;
 var hasPressedEquals = false;
-var angleMode = 'rad';
+var angleMode = 'deg';
 
 function prepareScreen(screen, grid, defaultColor) {
   for (var k in screen) {
@@ -225,11 +225,11 @@ function displayOutput(num) {
   if (num === Infinity || num === -Infinity || isNaN(num)) {
     // handle division by 0
     if (num === Infinity) {
-      num = 'INFINITY';
+      num = 'INF';
     } else if (num === -Infinity) {
-      num = '-INFINITY';
+      num = '-INF';
     } else {
-      num = 'NOT A NUMBER';
+      num = 'NaN';
     }
     currNumber = null;
     results = null;