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// SPDX-License-Identifier: EPL-2.0 OR GPL-2.0-or-later
// SPDX-FileCopyrightText: Bradley M. Bell <bradbell@seanet.com>
// SPDX-FileContributor: 2003-22 Bradley M. Bell
// ----------------------------------------------------------------------------
/*
{xrst_begin poly.cpp}
Polynomial Evaluation: Example and Test
#######################################
{xrst_literal
// BEGIN C++
// END C++
}
{xrst_end poly.cpp}
*/
// BEGIN C++
# include <cppad/cppad.hpp>
# include <cmath>
bool poly(void)
{ bool ok = true;
// degree of the polynomial
size_t deg = 3;
// set the polynomial coefficients
CPPAD_TESTVECTOR(double) a(deg + 1);
size_t i;
for(i = 0; i <= deg; i++)
a[i] = 1.;
// evaluate this polynomial
size_t k = 0;
double z = 2.;
double p = CppAD::Poly(k, a, z);
ok &= (p == 1. + z + z*z + z*z*z);
// evaluate derivative
k = 1;
p = CppAD::Poly(k, a, z);
ok &= (p == 1 + 2.*z + 3.*z*z);
return ok;
}
// END C++
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