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-- File: GaussSingleIntegration.cdl
-- Created: Tue May 14 18:15:11 1991
-- Author: Laurent PAINNOT
-- <lpa@topsn3>
---Copyright: Matra Datavision 1991, 1992
class GaussSingleIntegration from math
---Purpose:
-- This class implements the integration of a function of a single variable
-- between the parameter bounds Lower and Upper.
-- Warning: Order must be inferior or equal to 61.
uses Function from math,
OStream from Standard
raises NotDone from StdFail
is
Create
returns GaussSingleIntegration;
Create(F: in out Function; Lower, Upper: Real; Order: Integer)
---Purpose:
-- The Gauss-Legendre integration with N = Order points of integration,
-- is done on the function F between the bounds Lower and Upper.
returns GaussSingleIntegration;
Create(F: in out Function; Lower, Upper: Real; Order: Integer; Tol: Real)
---Purpose:
-- The Gauss-Legendre integration with N = Order points of integration and
-- given tolerance = Tol is done on the function F between the bounds
-- Lower and Upper.
returns GaussSingleIntegration;
Perform(me: in out; F: in out Function; Lower, Upper: Real; Order: Integer)
---Purpose: perfoms actual computation
is private;
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
returns Real
raises NotDone
is static;
Dump(me; o: in out OStream)
---Purpose: Prints information on the current state of the object.
is static;
fields
Val: Real;
Done: Boolean;
end GaussSingleIntegration;
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