log1p_exp()

double stan::math::opencl_kernels::log1p_exp

(

double

a

)

Calculates the log of 1 plus the exponential of the specified value without overflow.

log1p_exp(x) = log(1+exp(x))

Parameters

[in]

a

Argument.

Returns

natural logarithm of one plus the exponential of the argument.

Definition at line 28 of file log1p_exp.hpp.