1 #ifndef STAN_MATH_REV_SCAL_FUN_COSH_HPP
2 #define STAN_MATH_REV_SCAL_FUN_COSH_HPP
12 class cosh_vari :
public op_v_vari {
14 explicit cosh_vari(vari* avi) :
15 op_v_vari(
std::
cosh(avi->val_), avi) {
18 avi_->adj_ += adj_ *
std::sinh(avi_->val_);
51 return var(
new cosh_vari(a.
vi_));
fvar< T > cosh(const fvar< T > &x)
Independent (input) and dependent (output) variables for gradients.
vari * vi_
Pointer to the implementation of this variable.
fvar< T > sinh(const fvar< T > &x)