From c02dc63674dca431c07ccd3bf0ad6905955adc43 Mon Sep 17 00:00:00 2001
From: Simon Gardling <titaniumtown@gmail.com>
Date: Tue, 22 Mar 2022 14:45:10 -0400
Subject: [PATCH] cleanup 'newtons_method'

---
 src/misc.rs | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/src/misc.rs b/src/misc.rs
index e63ad01..472f768 100644
--- a/src/misc.rs
+++ b/src/misc.rs
@@ -151,10 +151,15 @@ pub fn newtons_method(
 			continue;
 		}
 
+		// if `ele.y` is NaN, just continue iterating
+		if ele.y.is_nan() {
+			continue;
+		}
+
 		let last_ele_y = last_ele_option.unwrap().y; // store this here as it's used multiple times
 
-		// If either are NaN, just continue iterating
-		if last_ele_y.is_nan() | ele.y.is_nan() {
+		// if `last_ele.y` is NaN, continue iterating
+		if last_ele_y.is_nan() {
 			continue;
 		}