Open CASCADE Technology  7.2.0

# FEmTool_ElementsOfRefMatrix Class Reference

this class describes the functions needed for calculating matrix elements of RefMatrix for linear criteriums (Tension, Flexsion and Jerk) by Gauss integration. Each function from set gives value Pi(u)'*Pj(u)' or Pi(u)''*Pj(u)'' or Pi(u)'''*Pj(u)''' for each i and j, where Pi(u) is i-th basis function of expansion and (') means derivative. More...

`#include <FEmTool_ElementsOfRefMatrix.hxx>`

Inheritance diagram for FEmTool_ElementsOfRefMatrix:
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## Public Member Functions

FEmTool_ElementsOfRefMatrix (const Handle< PLib_Base > &TheBase, const Standard_Integer DerOrder)

Standard_Integer NbVariables () const
returns the number of variables of the function. It is supposed that NbVariables = 1. More...

Standard_Integer NbEquations () const
returns the number of equations of the function. More...

Standard_Boolean Value (const math_Vector &X, math_Vector &F)
computes the values <F> of the functions for the variable <X>. returns True if the computation was done successfully, False otherwise. F contains results only for i<=j in following order: P0*P0, P0*P1, P0*P2... P1*P1, P1*P2,... (upper triangle of matrix {PiPj}) More...

Public Member Functions inherited from math_FunctionSet
virtual Standard_Integer GetStateNumber ()
Returns the state of the function corresponding to the latestcall of any methods associated with the function. This function is called by each of the algorithms described later which define the function Integer Algorithm::StateNumber(). The algorithm has the responsibility to call this function when it has found a solution (i.e. a root or a minimum) and has to maintain the association between the solution found and this StateNumber. Byu default, this method returns 0 (which means for the algorithm: no state has been saved). It is the responsibility of the programmer to decide if he needs to save the current state of the function and to return an Integer that allows retrieval of the state. More...

virtual ~math_FunctionSet ()

## Detailed Description

this class describes the functions needed for calculating matrix elements of RefMatrix for linear criteriums (Tension, Flexsion and Jerk) by Gauss integration. Each function from set gives value Pi(u)'*Pj(u)' or Pi(u)''*Pj(u)'' or Pi(u)'''*Pj(u)''' for each i and j, where Pi(u) is i-th basis function of expansion and (') means derivative.

## ◆ FEmTool_ElementsOfRefMatrix()

 FEmTool_ElementsOfRefMatrix::FEmTool_ElementsOfRefMatrix ( const Handle< PLib_Base > & TheBase, const Standard_Integer DerOrder )

## ◆ NbEquations()

 Standard_Integer FEmTool_ElementsOfRefMatrix::NbEquations ( ) const
virtual

returns the number of equations of the function.

Implements math_FunctionSet.

## ◆ NbVariables()

 Standard_Integer FEmTool_ElementsOfRefMatrix::NbVariables ( ) const
virtual

returns the number of variables of the function. It is supposed that NbVariables = 1.

Implements math_FunctionSet.

## ◆ Value()

 Standard_Boolean FEmTool_ElementsOfRefMatrix::Value ( const math_Vector & X, math_Vector & F )
virtual

computes the values <F> of the functions for the variable <X>. returns True if the computation was done successfully, False otherwise. F contains results only for i<=j in following order: P0*P0, P0*P1, P0*P2... P1*P1, P1*P2,... (upper triangle of matrix {PiPj})

Implements math_FunctionSet.

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