From e1985e85b00568be35f5ded80623a1baa0f575b9 Mon Sep 17 00:00:00 2001
From: Justin Lin <caterpillar@openhome.cc>
Date: Wed, 12 Jun 2019 08:20:16 +0800
Subject: [PATCH] multify directly

---
 src/__private__/__angy_angz.scad | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/__private__/__angy_angz.scad b/src/__private__/__angy_angz.scad
index cbc605bf..480b758e 100644
--- a/src/__private__/__angy_angz.scad
+++ b/src/__private__/__angy_angz.scad
@@ -3,6 +3,6 @@ function __angy_angz(p1, p2) =
         dx = p2[0] - p1[0],
         dy = p2[1] - p1[1],
         dz = p2[2] - p1[2],
-        ya = atan2(dz, sqrt(pow(dx, 2) + pow(dy, 2))),
+        ya = atan2(dz, sqrt(dx * dx + dy * dy)),
         za = atan2(dy, dx)
     ) [ya, za];
\ No newline at end of file