From de2a24e469fc940e36088fcdc07268d52792b9dd Mon Sep 17 00:00:00 2001
From: Simon Gardling <titaniumtown@gmail.com>
Date: Mon, 16 May 2022 09:23:46 -0400
Subject: [PATCH] newtons_method: return None for Infinates and NaNs

---
 src/misc.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/misc.rs b/src/misc.rs
index bb47665..a4cea63 100644
--- a/src/misc.rs
+++ b/src/misc.rs
@@ -244,7 +244,7 @@ fn newtons_method(
 	let mut x2: f64;
 	loop {
 		x2 = x1 - (f(x1) / f_1(x1));
-		if !range.contains(&x2) {
+		if !x2.is_finite() | !range.contains(&x2) {
 			return None;
 		}