Optimist::TestSet::Cosh< Real > Class Template Reference

Class container for the hyperbolic cosine function. More...

#include <Cosh.hh>

Inherits Optimist::ScalarFunction< Real, Cosh< Real > >.

Public Member Functions
	Cosh ()
std::string	name_impl () const
void	evaluate_impl (Real x, Real &out) const
void	first_derivative_impl (Real x, Real &out) const
void	second_derivative_impl (Real x, Real &out) const
Public Member Functions inherited from Optimist::ScalarFunction< Real, Cosh< Real > >
	ScalarFunction ()
std::string	name () const
void	evaluate (Real x, Real &out) const
void	first_derivative (Real x, Real &out) const
void	second_derivative (Real x, Real &out) const
Public Member Functions inherited from Optimist::Function< Real, 1, 1, Cosh< Real > >
	Function ()
std::string	name () const
void	evaluate (const InputType &x, OutputType &out) const
void	first_derivative (const InputType &x, FirstDerivativeType &out) const
void	second_derivative (const InputType &x, SecondDerivativeType &out) const
constexpr Integer	input_dimension () const
constexpr Integer	output_dimension () const
const std::vector< InputType > &	solutions () const
const std::vector< InputType > &	guesses () const
const InputType &	solution (const Integer i) const
const InputType &	guess (const Integer i) const
bool	is_solution (const InputType &x, const Real tol=EPSILON_LOW) const

Additional Inherited Members
Public Types inherited from Optimist::Function< Real, 1, 1, Cosh< Real > >
using	InputType
using	OutputType
using	FirstDerivativeType
using	SecondDerivativeType
Public Attributes inherited from Optimist::ScalarFunction< Real, Cosh< Real > >
friend	Function< Real, 1, 1, ScalarFunction< Real, DerivedFunction > >
Protected Attributes inherited from Optimist::Function< Real, 1, 1, Cosh< Real > >
std::vector< InputType >	m_solutions
std::vector< InputType >	m_guesses

Detailed Description

template<typename Real>
class Optimist::TestSet::Cosh< Real >

Class container for the hyperbolic cosine function, which is defined as:

\[f(x) = \cosh(x) = \displaystyle\frac{e^x + e^{-x}}{2} \text{.} \]

The function has a minimum at \(x = 0\), with \(f(x) = 1\). The initial guesses are generated on the range \(x \in \left[-10, 10\right]\).

Template Parameters

Real	Scalar number type.

Constructor & Destructor Documentation

Cosh()

template<typename Real>

Optimist::TestSet::Cosh< Real >::Cosh ( )

inline

< Basic constants. Class constructor for the hyperbolic cosine function.

Member Function Documentation

evaluate_impl()

template<typename Real>

void Optimist::TestSet::Cosh< Real >::evaluate_impl ( Real x, Real & out ) const

inline

Compute the function value at the input point.

Parameters

[in]	x	Input point.
[out]	out	The function value.

first_derivative_impl()

template<typename Real>

void Optimist::TestSet::Cosh< Real >::first_derivative_impl ( Real x, Real & out ) const

inline

Compute the first derivative value at the input point.

Parameters

[in]	x	Input point.
[out]	out	The first derivative value.

name_impl()

template<typename Real>

std::string Optimist::TestSet::Cosh< Real >::name_impl ( ) const

inline

Get the function name.

Returns

The function name.

second_derivative_impl()

template<typename Real>

void Optimist::TestSet::Cosh< Real >::second_derivative_impl ( Real x, Real & out ) const

inline

Compute the second derivative value at the input point.

Parameters

[in]	x	Input point.
[out]	out	The second derivative value.

---

The documentation for this class was generated from the following file:

• include/Optimist/TestSet/ScalarFunction/Cosh.hh