denotes that first order adjoints are computed in working precision; this has the corresponding argument type nagad_a1w_w_rtype
Also available is the t1w
(first order tangent linear) mode, the interface of which is implied by replacing a1w
throughout this document.
Additionally, the p0w
(passive interface, as alternative to the FL interface) mode is available and can be inferred by replacing of active types by the corresponding passive types.
The method of codifying AD implementations in the routine name and corresponding argument types is described in the NAG AD Library Introduction