\(\newcommand{\W}[1]{ \; #1 \; }\) \(\newcommand{\R}[1]{ {\rm #1} }\) \(\newcommand{\B}[1]{ {\bf #1} }\) \(\newcommand{\D}[2]{ \frac{\partial #1}{\partial #2} }\) \(\newcommand{\DD}[3]{ \frac{\partial^2 #1}{\partial #2 \partial #3} }\) \(\newcommand{\Dpow}[2]{ \frac{\partial^{#1}}{\partial {#2}^{#1}} }\) \(\newcommand{\dpow}[2]{ \frac{ {\rm d}^{#1}}{{\rm d}\, {#2}^{#1}} }\)
double_poly.cpp¶
View page sourceDouble Speed: Evaluate a Polynomial¶
Specifications¶
See link_poly .
Implementation¶
# include <cppad/cppad.hpp>
# include <cppad/speed/uniform_01.hpp>
// Note that CppAD uses global_option["memory"] at the main program level
# include <map>
extern std::map<std::string, bool> global_option;
bool link_poly(
size_t size ,
size_t repeat ,
CppAD::vector<double> &a , // coefficients of polynomial
CppAD::vector<double> &z , // polynomial argument value
CppAD::vector<double> &p ) // second derivative w.r.t z
{
if(global_option["onetape"]||global_option["atomic"]||global_option["optimize"])
return false;
// -----------------------------------------------------
// setup
// ------------------------------------------------------
while(repeat--)
{ // get the next argument value
CppAD::uniform_01(1, z);
// evaluate the polynomial at the new argument value
p[0] = CppAD::Poly(0, a, z[0]);
}
return true;
}