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/* Copyright (c) 2008-2022 the MRtrix3 contributors.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Covered Software is provided under this License on an "as is"
* basis, without warranty of any kind, either expressed, implied, or
* statutory, including, without limitation, warranties that the
* Covered Software is free of defects, merchantable, fit for a
* particular purpose or non-infringing.
* See the Mozilla Public License v. 2.0 for more details.
*
* For more details, see http://www.mrtrix.org/.
*/
#include "math/math.h"
namespace MR
{
namespace Math
{
//! Evaluate a polynomial expansion for a scalar term
template <class Cont>
default_type polynomial (Cont& coeffs, const default_type x)
{
if (!coeffs.size())
return NaN;
default_type result = coeffs[coeffs.size()-1];
for (ssize_t i = coeffs.size() - 2; i >= 0; --i) {
result *= x;
result += default_type(coeffs[i]);
}
return result;
}
}
}
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