On Pade Spproximation of Some Practical Functions
Publish place: Journal of Iranian Association of Electrical and Electronics Engineers، Vol: 12، Issue: 3
Publish Year: 1394
نوع سند: مقاله ژورنالی
زبان: English
View: 378
This Paper With 8 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_JIAE-12-3_011
تاریخ نمایه سازی: 13 تیر 1396
Abstract:
The pade approximation of e(Tz) has special importance in some engineering problems such as investigation of linear time-delayad systems. In this paper a novel method is introduced to construct pade approximation form of some practical functions, such as e(z), (1-z)α (1+z)β with non-integers α and β, 1n(1+z) and (1+z)β with non-integer β. This method gives a new closed from of Pade approximate of these functions by orthogonal polynomials. It interoduces also a novel method to reduce the order of an ordinary differential equation. In other words, the method of this paper presents a new method to approximate the solution of an n-order ordinary differential equation by an (n-1)-order order ordinary differential equation.
Keywords:
Authors
Javad Askari-Marnani
Associate Professor, Department of Electrical Engineering, Daculty of Electrical and Computer Engineering, Isfahan University of Technology, Isfahan, Iran
Parviz Jabedar-Maralani
Professor, Department of Electrical Engineering, Faculty of Engineering,Tehran University, Tehran, Iran