CppAD: A C++ Algorithmic Differentiation Package  20171217
template<class Base >
 void CppAD::local::forward_subpv_op ( size_t p, size_t q, size_t i_z, const addr_t * arg, const Base * parameter, size_t cap_order, Base * taylor )
inline

Compute forward mode Taylor coefficients for result of op = SubpvOp.

The C++ source code corresponding to this operation is

```     z = x - y
```

In the documentation below, this operations is for the case where x is a parameter and y is a variable.

Template Parameters
 Base base type for the operator; i.e., this operation was recorded using AD< Base > and computations by this routine are done using type Base.
Parameters
 p lowest order of the Taylor coefficient that we are computing. q highest order of the Taylor coefficient that we are computing. i_z variable index corresponding to the result for this operation; i.e. the row index in taylor corresponding to z. arg arg[0] index corresponding to the left operand for this operator; i.e. the index corresponding to x. arg[1] index corresponding to the right operand for this operator; i.e. the index corresponding to y. parameter If x is a parameter, parameter [ arg[0] ] is the value corresponding to x. If y is a parameter, parameter [ arg[1] ] is the value corresponding to y. cap_order maximum number of orders that will fit in the `taylor` array. taylor Input: If x is a variable, `taylor [ arg[0] * cap_order + k ]`, for k = 0 , ... , q, is the k-th order Taylor coefficient corresponding to x. Input: If y is a variable, `taylor [ arg[1] * cap_order + k ]`, for k = 0 , ... , q, is the k-th order Taylor coefficient corresponding to y. Input: `taylor [ i_z * cap_order + k ]`, for k = 0 , ... , p-1, is the k-th order Taylor coefficient corresponding to z. Output: `taylor [ i_z * cap_order + k ]`, for k = p, ... , q, is the k-th order Taylor coefficient corresponding to z.
Checked Assertions
• NumArg(op) == 2
• NumRes(op) == 1
• q < cap_order
• p <= q

Definition at line 196 of file sub_op.hpp.

Referenced by forward1sweep(), and forward_erf_op().