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diff --git a/src/include/glm/ext/quaternion_geometric.hpp b/src/include/glm/ext/quaternion_geometric.hpp
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+++ b/src/include/glm/ext/quaternion_geometric.hpp
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+/// @ref ext_quaternion_geometric
+/// @file glm/ext/quaternion_geometric.hpp
+///
+/// @defgroup ext_quaternion_geometric GLM_EXT_quaternion_geometric
+/// @ingroup ext
+///
+/// Provides geometric functions for quaternion types
+///
+/// Include <glm/ext/quaternion_geometric.hpp> to use the features of this extension.
+///
+/// @see core_geometric
+/// @see ext_quaternion_float
+/// @see ext_quaternion_double
+
+#pragma once
+
+// Dependency:
+#include "../geometric.hpp"
+#include "../exponential.hpp"
+#include "../ext/vector_relational.hpp"
+
+#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
+#	pragma message("GLM: GLM_EXT_quaternion_geometric extension included")
+#endif
+
+namespace glm
+{
+	/// @addtogroup ext_quaternion_geometric
+	/// @{
+
+	/// Returns the norm of a quaternions
+	///
+	/// @tparam T Floating-point scalar types
+	/// @tparam Q Value from qualifier enum
+	///
+	/// @see ext_quaternion_geometric
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL T length(qua<T, Q> const& q);
+
+	/// Returns the normalized quaternion.
+	///
+	/// @tparam T Floating-point scalar types
+	/// @tparam Q Value from qualifier enum
+	///
+	/// @see ext_quaternion_geometric
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL qua<T, Q> normalize(qua<T, Q> const& q);
+
+	/// Returns dot product of q1 and q2, i.e., q1[0] * q2[0] + q1[1] * q2[1] + ...
+	///
+	/// @tparam T Floating-point scalar types.
+	/// @tparam Q Value from qualifier enum
+	///
+	/// @see ext_quaternion_geometric
+	template<typename T, qualifier Q>
+	GLM_FUNC_DECL T dot(qua<T, Q> const& x, qua<T, Q> const& y);
+
+	/// Compute a cross product.
+	///
+	/// @tparam T Floating-point scalar types
+	/// @tparam Q Value from qualifier enum
+	///
+	/// @see ext_quaternion_geometric
+	template<typename T, qualifier Q>
+	GLM_FUNC_QUALIFIER qua<T, Q> cross(qua<T, Q> const& q1, qua<T, Q> const& q2);
+
+	/// @}
+} //namespace glm
+
+#include "quaternion_geometric.inl"