fa On Padé Approximation of Some Practical Functions مخابرات Communication پژوهشي Research <p dir="ltr"><strong>The Pad&eacute; approximation of <img alt="AWT IMAGE" height="21" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image002.gif" width="21" >&nbsp;has special importance in some engineering problems such as investigation of linear time-delayed systems. In this paper a novel method is introduced to construct Pad&eacute; approximation form of some practical functions, such as <img alt="AWT IMAGE" height="21" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image004.gif" width="17" >, <img alt="AWT IMAGE" height="24" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image002.gif" width="97" >&nbsp;with non-integers <img alt="AWT IMAGE" height="15" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image008.gif" width="16" >&nbsp;and <img alt="AWT IMAGE" height="21" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image010.gif" width="16" >, <img alt="AWT IMAGE" height="21" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image012.gif" width="55" >and <img alt="AWT IMAGE" height="24" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image014.gif" width="51" >&nbsp;with non-integer<img alt="AWT IMAGE" height="21" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image010.gif" width="16" >. This method gives a new closed form of Pad&eacute; approximant of these functions by orthogonal polynomials. It introduces 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 <img alt="AWT IMAGE" height="15" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image017.gif" width="13" >-order ordinary differential equation by an (<img alt="AWT IMAGE" height="19" src="file:///C:UsersZareAppDataLocalTempmsohtmlclip11clip_image019.gif" width="32" >)- order ordinary differential equation.</strong></p> 93 100 http://jiaeee.com/browse.php?a_code=A-10-1-63&slc_lang=fa&sid=1 Javad Askari – Marnani Javad Askari – Marnani 1003194753284600257 1003194753284600257 Yes Parviz Jabedar – Maralani Parviz Jabedar – Maralani 1003194753284600258 1003194753284600258 No