The fourth issue in the third year of publication, DJMA Volume 4 Number 1 presents a range of cutting-edge research articles focusing on applied mathematics, computer science and applied statistics. This issue features contributions from academics and researchers at various levels.

Published: June 30, 2025

Articles

Kinerja Peramalan Autoregressive Integrated Moving Average dan Seasonal Autoregressive Integrated Moving Average dalam Memprediksi Kejadian Gempa Bumi Sumatra

10.33369/diophantine.v4i1.41099
Muhammad A. Firmansyah (1), Cinta R. Oktarina (2)
(1) Perusahaan Listrik Negara (PLN) Bengkulu, Bengkulu, Indonesia ,
(2) Program Studi S2 Statistika, Universitas Bengkulu, Indonesia
1-16

Analisis Perbandingan Metode Hirearchical, K-Means, dan K-Medoids Clustering dalam Pengelompokan Kasus Penyakit Menular di Bengkulu Tengah

10.33369/diophantine.v4i1.32048
Desi T. Tasti (1), Fridz M. Gumay (2), Ulfianida Aysha (3), Winalia Agwil (4), Wingke Y. Pratami (5)
(1) Program Studi Statistika, Universitas Bengkulu, Indonesia ,
(2) Program Studi Statistika, Universitas Bengkulu, Indonesia ,
(3) Program Studi Statistika, Universitas Bengkulu, Indonesia ,
(4) Program Studi Statistika, Universitas Bengkulu, Indonesia ,
(5) Program Studi Statistika, Universitas Bengkulu, Indonesia
17-26

Optimalisasi Jadwal Menggunakan Pewarnaan Vertex Graf

10.33369/diophantine.v4i1.40651
Ade I. A. Himayati (1), Putri Indriyani (2), Muhammad F. Bahari (3)
(1) Departemen Matematika, Universitas Muhammadiyah Kudus, Indonesia ,
(2) Departemen Matematika, Universitas Muhammadiyah Kudus, Indonesia ,
(3) Departemen Matematika, Universitas Muhammadiyah Kudus, Indonesia
27-31

Penerapan Logika Fuzzy Mamdani dalam Menentukan Prioritas Penerima Bantuan Langsung Tunai (BLT) di Desa Sukarami

10.33369/diophantine.v4i1.39181
Muhammad Fikriya (1), Sivi Hersiana (2), Zulfia M. Mayasari (3)
(1) Jurusan Matematika, Universitas Bengkulu, Indonesia ,
(2) Jurusan Matematika, Universitas Bengkulu, Indonesia ,
(3) Jurusan Matematika, Universitas Bengkulu, Indonesia
32-41

Forecasting Indonesia's Non-Oil and Gas Exports Using the Exchange Rate as an Exogenous Variable with the ARIMAX Model

Peramalan Ekspor Nonmigas Indonesia Menggunakan Variabel Eksogen Nilai Kurs Dengan Model Arimax

10.33369/diophantine.v4i1.41348
Muhammad Ihwal (1), Lilis Laome (2), Adelfina Salsabilah (3), Rita A. Ningtyas (4)
(1) Program Studi Statistika, Universitas Halu Oleo, Indonesia ,
(2) Program Studi Statistika, Universitas Halu Oleo, Indonesia ,
(3) Program Studi Statistika, Universitas Halu Oleo, Indonesia ,
(4) Program Studi Matematika, Universitas Halu Oleo, Indonesia
42-51