-- Created on: 1991-05-13
-- Created by: Laurent PAINNOT
-- Copyright (c) 1991-1999 Matra Datavision
-- Copyright (c) 1999-2012 OPEN CASCADE SAS
--
-- The content of this file is subject to the Open CASCADE Technology Public
-- License Version 6.5 (the "License"). You may not use the content of this file
-- except in compliance with the License. Please obtain a copy of the License
-- at http://www.opencascade.org and read it completely before using this file.
--
-- The Initial Developer of the Original Code is Open CASCADE S.A.S., having its
-- main offices at: 1, place des Freres Montgolfier, 78280 Guyancourt, France.
--
-- The Original Code and all software distributed under the License is
-- distributed on an "AS IS" basis, without warranty of any kind, and the
-- Initial Developer hereby disclaims all such warranties, including without
-- limitation, any warranties of merchantability, fitness for a particular
-- purpose or non-infringement. Please see the License for the specific terms
-- and conditions governing the rights and limitations under the License.




deferred class FunctionSetWithDerivatives from math 

inherits FunctionSet 

    ---Purpose: This abstract class describes the virtual functions associated
    --          with a set of N Functions each of M independant variables.

uses Vector from math, Matrix from math


is

    NbVariables(me)
    	---Purpose: Returns the number of variables of the function.

    returns Integer
    is deferred;
    
    
    NbEquations(me)
    	---Purpose: Returns the number of equations of the function.

    returns Integer
    is deferred;
    
    
    Value(me: in out; X: Vector; F: out Vector)
    	---Purpose: Computes the values <F> of the Functions for the 
    	--          variable <X>.
    	--          Returns True if the computation was done successfully, 
    	--          False otherwise.

    returns Boolean
    is deferred;
    
    
    Derivatives(me: in out; X: Vector; D: out Matrix)
    	---Purpose: Returns the values <D> of the derivatives for the 
    	--          variable <X>.
    	--          Returns True if the computation was done successfully, 
    	--          False otherwise.

    returns Boolean
    is deferred;
    
    
    Values(me: in out; X: Vector; F: out Vector; D: out Matrix)
    	---Purpose: returns the values <F> of the functions and the derivatives
    	--          <D> for the variable <X>.
    	--          Returns True if the computation was done successfully, 
    	--          False otherwise.

    returns Boolean
    is deferred;
    
end FunctionSetWithDerivatives;