\(\newcommand{\W}[1]{ \; #1 \; }\) \(\newcommand{\R}[1]{ {\rm #1} }\) \(\newcommand{\B}[1]{ {\bf #1} }\) \(\newcommand{\D}[2]{ \frac{\partial #1}{\partial #2} }\) \(\newcommand{\DD}[3]{ \frac{\partial^2 #1}{\partial #2 \partial #3} }\) \(\newcommand{\Dpow}[2]{ \frac{\partial^{#1}}{\partial {#2}^{#1}} }\) \(\newcommand{\dpow}[2]{ \frac{ {\rm d}^{#1}}{{\rm d}\, {#2}^{#1}} }\)

valvector_pow.cpp

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Example and Test of valvector pow Function

# include <sstream>
# include <string>
# include <cppad/example/valvector/class.hpp>
# include <cppad/utility/near_equal.hpp>
//
bool pow(void)
{  typedef valvector::scalar_type scalar_type;
   //
   // ok
   bool ok = true;
   //
   // eps99
   scalar_type eps99 = CppAD::numeric_limits<scalar_type>::epsilon();
   eps99            *= scalar_type(99);
   //
   // x, y, z
   valvector x = valvector( {2, 3, 4} );
   valvector y = valvector( {4, 3, 2} );;
   valvector z = CppAD::pow(x, y);
   //
   // ok
   ok &= x.size() == 3;
   for(size_t i = 0; i < x.size(); ++i)
   {  scalar_type check = pow( x[i], y[i] ); 
      ok &= CppAD::NearEqual( z[i], check, eps99, eps99); 
   }
   return ok;
}