1 #ifndef STAN_MATH_PRIM_MAT_FUN_COS_HPP
2 #define STAN_MATH_PRIM_MAT_FUN_COS_HPP
18 static inline T
fun(
const T& x) {
31 inline typename apply_scalar_unary<cos_fun, T>::return_t
fvar< T > cos(const fvar< T > &x)
var cos(const var &a)
Return the cosine of a radian-scaled variable (cmath).
Structure to wrap cos() so it can be vectorized.
static return_t apply(const T &x)
Return the result of applying the function defined by the template parameter F to the specified matri...