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inv_square.hpp
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1 #ifndef STAN_MATH_PRIM_SCAL_FUN_INV_SQUARE_HPP
2 #define STAN_MATH_PRIM_SCAL_FUN_INV_SQUARE_HPP
3
4 #include <boost/math/tools/promotion.hpp>
5
6 namespace stan {
7 namespace math {
8
9 template <typename T>
10 inline
11 typename boost::math::tools::promote_args<T>::type
12 inv_square(const T x) {
13 return 1.0 / (x * x);
14 }
15 }
16 }
17
18 #endif
stan::math::inv_square
fvar< T > inv_square(const fvar< T > &x)
Definition: inv_square.hpp:15

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