s15ad
is the AD Library version of the primal routine
s15adf.
Based (in the C++ interface) on overload resolution,
s15ad can be used for primal, tangent and adjoint
evaluation. It supports tangents and adjoints of first order.
Note: this function can be used with AD tools other than dco/c++. For details, please contact
NAG.
s15ad
is the AD Library version of the primal routine
s15adf.
s15adf returns the value of the complementary error function,
$\mathrm{erfc}\left(x\right)$, via the function name.
For further information see
Section 3 in the documentation for
s15adf.
A brief summary of the AD specific arguments is given below. For the remainder, links are provided to the corresponding argument from the primal routine.
A tooltip popup for all arguments can be found by hovering over the argument name in
Section 2 and in this section.
Note that the primal routine
is a function whereas
s15ad_a1w_f,
is a subroutine, where the function value is returned in the additional output parameter,
res.
There are no specific error codes from
s15adf, however
s15ad can return:
- ${\mathbf{ifail}}=-89$
An unexpected AD error has been triggered by this routine. Please
contact
NAG.
See
Error Handling in the NAG AD Library Introduction for further information.
- ${\mathbf{ifail}}=-199$
The routine was called using a strategy that has not yet been implemented.
See
AD Strategies in the NAG AD Library Introduction for further information.
- ${\mathbf{ifail}}=-444$
A C++ exception was thrown.
The error message will show the details of the C++ exception text.
- ${\mathbf{ifail}}=-899$
Dynamic memory allocation failed for AD.
See
Error Handling in the NAG AD Library Introduction for further information.
Not applicable.
None.
The following examples are variants of the example for
s15adf,
modified to demonstrate calling the NAG AD Library.