Simbody  3.6
PolynomialRootFinder.h
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1 #ifndef SimTK_SimTKCOMMON_POLYNOMIALROOTFINDER_H_
2 #define SimTK_SimTKCOMMON_POLYNOMIALROOTFINDER_H_
3 
4 /* -------------------------------------------------------------------------- *
5  * Simbody(tm): SimTKcommon *
6  * -------------------------------------------------------------------------- *
7  * This is part of the SimTK biosimulation toolkit originating from *
8  * Simbios, the NIH National Center for Physics-Based Simulation of *
9  * Biological Structures at Stanford, funded under the NIH Roadmap for *
10  * Medical Research, grant U54 GM072970. See https://simtk.org/home/simbody. *
11  * *
12  * Portions copyright (c) 2007-12 Stanford University and the Authors. *
13  * Authors: Peter Eastman *
14  * Contributors: *
15  * *
16  * Licensed under the Apache License, Version 2.0 (the "License"); you may *
17  * not use this file except in compliance with the License. You may obtain a *
18  * copy of the License at http://www.apache.org/licenses/LICENSE-2.0. *
19  * *
20  * Unless required by applicable law or agreed to in writing, software *
21  * distributed under the License is distributed on an "AS IS" BASIS, *
22  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
23  * See the License for the specific language governing permissions and *
24  * limitations under the License. *
25  * -------------------------------------------------------------------------- */
26 
27 #include "SimTKcommon/basics.h"
28 #include "SimTKcommon/Simmatrix.h"
29 
30 namespace SimTK {
31 
58 public:
66  template <class T>
67  static void findRoots(const Vec<3,T>& coefficients, Vec<2,complex<T> >& roots);
74  template <class T>
75  static void findRoots(const Vec<3,complex<T> >& coefficients, Vec<2,complex<T> >& roots);
82  template <class T>
83  static void findRoots(const Vec<4,T>& coefficients, Vec<3,complex<T> >& roots);
90  template <class T>
91  static void findRoots(const Vec<4,complex<T> >& coefficients, Vec<3,complex<T> >& roots);
98  template <class T>
99  static void findRoots(const Vector_<T>& coefficients, Vector_<complex<T> >& roots);
106  template <class T>
107  static void findRoots(const Vector_<complex<T> >& coefficients, Vector_<complex<T> >& roots);
108 };
109 
117 public:
118  ZeroLeadingCoefficient(const char* fn, int ln) : Base(fn,ln) {
119  setMessage("Attempting to find roots of a polynomial whose leading coefficient is 0.");
120  }
121  virtual ~ZeroLeadingCoefficient() throw() { }
122 };
123 
124 } // namespace SimTK
125 
126 #endif // SimTK_SimTKCOMMON_POLYNOMIALROOTFINDER_H_
SimTK::Exception::Base
Definition: Exception.h:46
SimTK::Exception::Base::Base
Base(const char *fn="<UNKNOWN>", int ln=0)
Definition: Exception.h:48
SimTK::PolynomialRootFinder::ZeroLeadingCoefficient::~ZeroLeadingCoefficient
virtual ~ZeroLeadingCoefficient()
Definition: PolynomialRootFinder.h:121
SimTK
This is a System that represents the dynamics of a particle moving along a smooth surface.
Definition: Assembler.h:37
Simmatrix.h
SimTK::PolynomialRootFinder
This class provides static methods for finding the roots of polynomials.
Definition: PolynomialRootFinder.h:57
SimTK::Vec
This is a fixed-length column vector designed for no-overhead inline computation.
Definition: SimTKcommon/include/SimTKcommon/internal/common.h:618
SimTK::PolynomialRootFinder::ZeroLeadingCoefficient
This is an exception which is thrown by all of the PolynomialRootFinder::findRoots() methods.
Definition: PolynomialRootFinder.h:116
SimTK_SimTKCOMMON_EXPORT
#define SimTK_SimTKCOMMON_EXPORT
Definition: SimTKcommon/include/SimTKcommon/internal/common.h:224
SimTK::Exception::Base::setMessage
void setMessage(const std::string &msgin)
Definition: Exception.h:57
SimTK::Vector_< T >
basics.h
SimTK::PolynomialRootFinder::ZeroLeadingCoefficient::ZeroLeadingCoefficient
ZeroLeadingCoefficient(const char *fn, int ln)
Definition: PolynomialRootFinder.h:118