Define an abstract linear function. More...
#include <roboptim/core/linear-function.hh>
Public Member Functions | |
LinearFunction (size_type inputSize, size_type outputSize=1, std::string name=std::string()) throw () | |
Concrete class constructor should call this constructor. | |
virtual std::ostream & | print (std::ostream &) const throw () |
Display the function on the specified output stream. | |
Protected Member Functions | |
void | impl_hessian (hessian_t &hessian, const argument_t &argument, size_type functionId=0) const throw () |
Hessian evaluation. |
Define an abstract linear function.
Inherit from this class when implementing linear functions.
roboptim::LinearFunction::LinearFunction | ( | size_type | inputSize, |
size_type | outputSize = 1 , |
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std::string | name = std::string () |
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) | throw () |
Concrete class constructor should call this constructor.
inputSize | function arity |
outputSize | result size |
name | function's name |
void roboptim::LinearFunction::impl_hessian | ( | hessian_t & | hessian, |
const argument_t & | argument, | ||
size_type | functionId = 0 |
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) | const throw () [protected, virtual] |
Hessian evaluation.
Compute the hessian, has to be implemented in concrete classes. The hessian is computed for a specific sub-function which id is passed through the functionId argument.
hessian | hessian will be stored here |
argument | point where the hessian will be computed |
functionId | evaluated function id in the split representation |
Implements roboptim::TwiceDerivableFunction.
std::ostream & roboptim::LinearFunction::print | ( | std::ostream & | o | ) | const throw () [virtual] |
Display the function on the specified output stream.
o | output stream used for display |
Reimplemented from roboptim::QuadraticFunction.
Reimplemented in roboptim::NumericLinearFunction, roboptim::ConstantFunction, and roboptim::IdentityFunction.