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All Journal Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi)
Gunaryati, Agus
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Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management

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Perbandingan Metode Interpolasi Newton dan Lagrange dengan Bahasa Pemrograman C++ Furqaansyah, Yoga; Fauziah, Fauziah; Gunaryati, Agus; Fitri, Iskandar
Jurnal JTIK (Jurnal Teknologi Informasi dan Komunikasi) Vol 6, No 3 (2022): July-September
Publisher : KITA Institut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35870/jtik.v6i3.457

Abstract

Interpolation is defined as an estimate of a known value. Extensive interpolation is an attempt to determine the approximate value of an analytic function that is unknown or alternatively a complex function whose analytic equation cannot be obtained. You can combine the use of math and math to analyze the price of an item. This study describes Newton's method and the polynomial method. Therefore, interpolation with Newton's method has an error value that is smaller than the error value of the Lagrange interpolation. The results in this research case study when x = 2.5 using 10 data performed using Newton's polynomial interpolation method have a result of 1.70956 where this value is lower than the value of the analysis using the Lagrange method which is 3.2163.
Co-Authors Fauziah Fauziah Furqaansyah, Yoga Iskandar Fitri, Iskandar