International Journal For Research In Mathematics And Statistics (ISSN: 2208-2662) https://gnpublication.org/index.php/ms <p>Green Publication provides high quality research journals with monthly frequency, open access and double blind peer-reviewed. Green Publication providing a platform for the researchers, academicians, professional, practitioners and students to impart and share knowledge in the form of high quality empirical and theoretical research papers, case studies, literature reviews and book reviews.<br><span style="font-size: 1.5em;"><strong> <span style="color: black; text-shadow: #048204 0px 0px 3px;">Current Impact Factor: 2.680</span></strong></span></p> Green Publication en-US International Journal For Research In Mathematics And Statistics (ISSN: 2208-2662) 2208-2662 <p>In consideration of the journal, Green Publication taking action in reviewing and editing our manuscript, the authors undersigned hereby transfer, assign, or otherwise convey all copyright ownership to the Editorial Office of the Green Publication in the event that such work is published in the journal. Such conveyance covers any product that may derive from the published journal, whether print or electronic. Green Publication shall have the right to register copyright to the Article in its name as claimant, whether separately <br>or as part of the journal issue or other medium in which the Article is included.</p> <p>By signing this Agreement, the author(s), and in the case of a Work Made For Hire, the employer, jointly and severally represent and warrant that the Article is original with the author(s) and does not infringe any copyright or violate any other right of any third parties, and that the Article has not been published elsewhere, and is not being considered for publication elsewhere in any form, except as provided herein. Each author’s signature should appear below. The signing author(s) (and, in Computational Data analysis of Fourıer Transformatıon by Numerical experiments(Numerical CODE) https://gnpublication.org/index.php/ms/article/view/943 <p><em>&nbsp;</em><em>The Fourier series (FS) and the Discrete Fourier Transform (DFT) should be thought of as playing similar roles for periodic signals in either continuous time (FS) or discrete time (DFT). Both analyze signals into amplitude, phases, and frequencies of complex exponentials; both synthesize signals by linearly combining complex exponentials with appropriate amplitude, phase, and frequency. Finally, both transforms have aspects that are extremely important to remember and other aspects that are important, but can be adjusted as necessary. As we work through some of the details, we’ll identify these very important and the not so important aspects. </em><em>Frequency analysis is one of the key issues in the IEEE Society. Using computers in numerical calculations means moving into a non-physical, synthetic environment. Numerically, discrete or fast Fourier transformations (DFT or FFT) are used to obtain the frequency contents of a time signal and these are totally different than mathematical definition of the Fourier transform. This article simple reviews DFT and FFT with characteristic examples.</em></p> Tadesse Lamessa Copyright (c) 2019 International Journal For Research In Mathematics And Statistics (ISSN: 2208-2662) http://creativecommons.org/licenses/by-nc-nd/4.0 2019-05-29 2019-05-29 5 5 01 13