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76 lines
2.2 KiB
Plaintext
Executable File
76 lines
2.2 KiB
Plaintext
Executable File
-- File: PolyFunction.cdl
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-- Created: Mon Jan 14 16:20:47 1991
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-- Author: Arnaud BOUZY
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-- <adn@topsn3>
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---Copyright: Matra Datavision 1991
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class PolyFunction from Expr
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inherits PolyExpression from Expr
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---Purpose: Defines the use of an n-ary function in an expression
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-- with given arguments.
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uses GeneralFunction from Expr,
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AsciiString from TCollection,
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GeneralExpression from Expr,
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NamedUnknown from Expr,
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Array1OfNamedUnknown from Expr,
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Array1OfReal from TColStd,
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Array1OfGeneralExpression from Expr
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raises NumericError from Standard,
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OutOfRange from Standard,
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NotEvaluable from Expr
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is
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Create(func : GeneralFunction;exps : Array1OfGeneralExpression)
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---Purpose: Creates <me> as <func>(<exps_1>,<exps_2>,...,<exps_n>)
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returns mutable PolyFunction;
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Function(me)
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---Purpose: Returns the function defining <me>.
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returns GeneralFunction;
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ShallowSimplified(me)
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---Purpose: Returns a GeneralExpression after a simplification
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-- of the arguments of <me>.
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returns any GeneralExpression
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raises NumericError;
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Copy(me)
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---Purpose: Returns a copy of <me> having the same unknowns and functions.
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returns mutable like me;
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IsIdentical(me; Other : GeneralExpression)
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---Purpose: Tests if <me> and <Other> define the same expression.
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-- This method does not include any simplification before
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-- testing.
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returns Boolean;
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IsLinear(me)
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returns Boolean;
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Derivative(me; X : NamedUnknown)
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---Purpose: Returns the derivative on <X> unknown of <me>
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returns any GeneralExpression;
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Evaluate(me; vars : Array1OfNamedUnknown; vals : Array1OfReal)
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---Purpose: Returns the value of <me> (as a Real) by
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-- replacement of <vars> by <vals>.
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-- Raises NotEvaluable if <me> contains NamedUnknown not
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-- in <vars> or NumericError if result cannot be computed.
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returns Real
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raises NotEvaluable,NumericError;
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String(me)
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---Purpose: returns a string representing <me> in a readable way.
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returns AsciiString;
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fields
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myFunction : GeneralFunction;
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end PolyFunction;
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