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

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;
}