Secular equation


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Related to Secular equation: Characteristic equation, Characteristic root
(Astron.) the algebraic or numerical expression of the magnitude of the inequalities in a planet's motion that remain after the inequalities of a short period have been allowed for.

See also: Secular

References in periodicals archive ?
New secular equation of RSPDT matrix and its rational approximation, Proceedings of 21th International DAAAM Symposium, ISBN 978-3-901509-73-51 ,ISSN 1726-9679, pp 0043
Practical strategies for stabilisation of algorithms based on secular equations of RSPDTM, Proceedings of 10th International Conference on Accomplishments in Electrical and Mechanical Engineering and Information technology (10; 2011; Banja Luka), ISBN 978-99938-39-36-1, COBISS.
Taking advantage of the fact that the spectrum of a symmetric Toeplitz matrix can be divided into odd and even parts the methods based on the secular equation were accelerated in (Voss, 1999).
Due to its special structure possessed by Toeplitz matrices we use the information we obtain from the appropriate matrix of a smaller size for calculating the value of the characteristic polynomial or the secular equation.
If we know the smallest pole then it would be no problem to find a rational model of our secular equation.
In Section 3 we present the new method which is based on new secular equation and its approximation.
We have presented new secular equation of RSPDT matrix [T.