libigl_Martin/include/igl/polyroots.h

// This file is part of libigl, a simple c++ geometry processing library.
//
// Copyright (C) 2014 Olga Diamanti <olga.diam@gmail.com>
//
// 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/.

#ifndef IGL_POLYROOTS
#define IGL_POLYROOTS
#include "igl_inline.h"

#include <Eigen/Core>

namespace igl {
  //todo
  /// Given 2 vectors centered on origin calculate the rotation matrix from first to the second

  // Inputs:
  //   v0, v1         the two #3 by 1 vectors
  //   normalized     boolean, if false, then the vectors are normalized prior to the calculation
  // Output:
  //                  3 by 3 rotation matrix that takes v0 to v1
  //
  template <typename S, typename T>
  IGL_INLINE void polyRoots(Eigen::Matrix<S, Eigen::Dynamic,1> &polyCoeff, //real or comples coefficients
                            Eigen::Matrix<std::complex<T>, Eigen::Dynamic,1> &roots // complex roots (double or float)
                            );
}


#ifndef IGL_STATIC_LIBRARY
#include "polyroots.cpp"
#endif


#endif /* defined(IGL_NCHOOSEK) */