FC_Poly5Zeros

FC_Poly5Zeros - General Information

Overview

Task

Solutions of the 5nd order equation

Description

The solutions are complex numbers which are returned in a structure of type ST_PolynomialZeros.

Interface

Input	Data type	Description
i_alrCoefficients	ARRAY[0..5] OF LREAL	List of the coefficients, with the element 5 being the coefficient of the highest order and the element 0 being the coefficient of the lowest order.

Output	Data type	Description
q_etDiag	GD.ET_Diag	General library-independent statement on the diagnostic. A value not equal to ET_Diag.Ok corresponds to an diagnostic message.
q_etDiagExt	ET_DiagExt	POU-specific output on the diagnostic. q_etDiag = ET_Diag.Ok -> Status message q_etDiag <> ET_Diag.Ok -> Diagnostic message

Output

Data type

Description

q_etDiag

General library-independent statement on the diagnostic.

A value not equal to ET_Diag.Ok corresponds to an diagnostic message.

q_etDiagExt

POU-specific output on the diagnostic.

q_etDiag = ET_Diag.Ok -> Status message

q_etDiag <> ET_Diag.Ok -> Diagnostic message

Return Value

Data type	Description
ST_PolynomialZeros	Zeros of the function

Diagnostic Messages

q_etDiag	q_etDiagExt	Enumeration value	Description
OK	Ok	0	Ok

The zeros have been calculated successfully.