inv_sqrt.hpp File Reference

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Namespaces
namespace	internal

Functions
template<typename T >
constexpr T	internal::inv_sqrt_recur (const T x, const T xn, const int count) noexcept
template<typename T >
constexpr T	internal::inv_sqrt_check (const T x) noexcept
template<typename T >
constexpr return_t< T >	inv_sqrt (const T x) noexcept
	Compile-time inverse-square-root function. More...

Function Documentation

inv_sqrt()

template<typename T >

constexpr return_t< T > inv_sqrt ( const T  x )

constexprnoexcept

Compile-time inverse-square-root function.

Parameters

x	a real-valued input.

Returns

Computes \( 1 / \sqrt{x} \) using a Newton-Raphson approach.