-- File:        math_GaussSetIntegration.cdl
-- Created:     Mon Jan 22  1996
-- Author:      Philippe MANGIN
--              <lpa@topsn3>
---Copyright:    Matra Datavision 1991, 1996



class GaussSetIntegration from math
    ---Purpose: -- This class implements the integration of a set of N
    --              functions of M  variables variables between the
    --              parameter bounds Lower[a..b] and Upper[a..b].
    --  Warning: - The case M>1 is not implemented.


uses Vector from math,
     IntegerVector from math, 
     FunctionSet from math,
     OStream from Standard,
     NotDone from StdFail

raises NotDone, NotImplemented

is

     Create(F: in out FunctionSet; Lower, Upper: Vector;
     	    Order: IntegerVector)
     ---Purpose:
     -- The Gauss-Legendre integration with Order = points of 
     -- integration for each unknow, is done on the function F 
     -- between the bounds Lower and Upper.
     returns GaussSetIntegration     
     raises  NotImplemented;
     
     IsDone(me)
     	---Purpose: returns True if all has been correctly done.
    	---C++: inline

     returns Boolean
     is static;
     
     Value(me)
     	---Purpose: returns the value of the integral.
    	---C++: inline
    	---C++: return const&

     returns Vector
     raises NotDone
     is static;


    Dump(me; o: in out OStream)
    	---Purpose: Prints information on the current state of the object.
    is static;




fields

Val: Vector;
Done: Boolean;

end GaussSetIntegration;