Prev

Next

Index-> contents reference index search external

Up-> cppad_swig library a_fun independent

cppad_swig-> testing swig_xam.i library whats_new_2018

library-> module a_double vector a_fun sparse error xam.m4

a_fun-> independent abort_recording a_fun_ctor a_fun_jacobian a_fun_hessian a_fun_forward a_fun_reverse a_fun_optimize a_fun_property

independent

Headings-> Syntax module_ref x ax Purpose Example

@(@\newcommand{\B}[1]{ {\bf #1} } \newcommand{\R}[1]{ {\rm #1} }@)@Declare Independent Variables and Start Recording
Syntax
ax = module_ref independent(x)

module_ref
This is the module reference for the particular language.

x
This argument has prototype
     const vec_double& x
Its specifies the number of independent variables and their values during the recording. We use the notation n = x.size() to denote the number of independent variables.

ax
The result has prototype
     vec_a_double& ax
This is the vector of independent variables. It has size n and for i = 0 to n-1
     ax[i].value() == x[i]

Purpose
This starts a recording of the a_double operation. This recording is terminated, and the information is stored, by calling the a_fun constructor . It is terminated, and the information is lost, by calling abort_recording .

Example
All of the a_fun examples use this function.

---

Input File: lib/a_fun.cpp