From 451b4c1e6632c1a91192ad766c83057aa965a2d1 Mon Sep 17 00:00:00 2001
From: lisyarus <lisyarus@gmail.com>
Date: Tue, 17 Aug 2021 12:45:41 +0300
Subject: [PATCH] Add geom::sin_over_x

---
 libs/geom/include/psemek/geom/math.hpp | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/libs/geom/include/psemek/geom/math.hpp b/libs/geom/include/psemek/geom/math.hpp
index 573473b8..61f91c44 100644
--- a/libs/geom/include/psemek/geom/math.hpp
+++ b/libs/geom/include/psemek/geom/math.hpp
@@ -49,6 +49,14 @@ namespace psemek::geom
 		return x0 * (T(1) - t) + x1 * t;
 	}
 
+	template <typename T>
+	T sin_over_x(T const & x)
+	{
+		if (std::abs(x) < std::numeric_limits<T>::epsilon())
+			return T{1};
+		return std::sin(x) / x;
+	}
+
 	namespace detail
 	{