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All Journal SEMIRATA 2015 Delta-Pi : Jurnal Matematika dan Pendidikan Matematika Jurnal Hilirisasi IPTEKS (JHI) Indonesian Journal of Combinatorics Jurnal Matematika UNAND Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Warta Pengabdian Andalas: Jurnal Ilmiah Pengembangan Dan Penerapan Ipteks Jurnal Ipteks Terapan : research of applied science and education Jurnal Matematika Integratif
Narwen Narwen
Jurusan Matematika FMIPA Universitas Andalas Padang
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BILANGAN KROMATIK LOKASI DARI HASIL AMALGAMASI GRAF BINTANG YANG DIHUBUNGKAN OLEH SUATU GRAF LINGKARAN RUVIQA PUTRI SOLEHA; DES WELYYANTI; NARWEN NARWEN
Jurnal Matematika UNAND Vol 9, No 1 (2020)
Publisher : Jurusan Matematika FMIPA Universitas Andalas Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jmu.9.1.46-52.2020

Abstract

Pada penelitian ini membahas tentang penentuan bilangan kromatik lokasi dari hasil amalgamasi graf bintang yang dihubungkan oleh suatu graf lingkaran nSk,m dengan k = 4, m = 3 dan n ≥ 3 adalah χL(nS4,3) = 4 untuk n ≤ 4 dan χL(nS4,3) = 5 untuk n > 4.Kata Kunci: Bilangan kromatik lokasi, amalgamasi graf bintang, graf lingkaran
SOLUSI SISTEM PERSAMAAN MATRIKS FUZZY Ahmad Surya; Admi Nazra; Narwen .
Jurnal Matematika UNAND Vol 6, No 2 (2017)
Publisher : Jurusan Matematika FMIPA Universitas Andalas Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jmu.6.2.34-42.2017

Abstract

Sistem linier fuzzy merupakan salah satu aplikasi pokok dari aritmatika bilangan fuzzy. Sistem persamaan matriks fuzzy dibentuk dari sejumlah sistem linier fuzzy yang solusinya dapat dicari dengan menggunakan berbagai metode. Masalah pada sistem persamaan matriks fuzzy terletak pada entri-entrinya yang merupakan bilangan fuzzy, sehingga tidak dapat diselesaikan dengan cara seperti pada matriks dengan entrientrinya yang merupakan bilangan riil biasa. Sistem persamaan matriks fuzzy dapat diselesaikan dengan menggunakan metode Friedman dan metode yang diberikan oleh Mahmood Otadi dan Maryam Mosleh. Sistem persamaan matriks fuzzy yang diselesaikan dengan metode yang diberikan oleh Mahmod Otadi dan Maryam Mosleh terbukti lebih efisien.Kata Kunci: Sistem linier fuzzy, Aritmatika bilangan fuzzy, Bilangan fuzzy, Sistem persamaan matriks fuzzy
THE APPLICATION OF TRIDIAGONAL MATRIX ALGORITHM IN CUBIC SPLINE INTERPOLATION Elvathna Syafwan; EfendI -; Narwen -; Mahdhivan Syafwan
Jurnal Ipteks Terapan (Research Of Applied Science And Education ) Vol. 14 No. 3 (2020): Re Publish Issue
Publisher : Lembaga Layanan Pendidikan Tinggi Wilayah X

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.311 KB) | DOI: 10.22216/jit.v14i3.95

Abstract

Tridiagonal matrix algorithm is known to be more efficient in the computational process than theGaussian elimination method in solving linear system problems involving tridiagonal matrices. Inthis paper, the tridiagonal matrix algorithm is applied to the cubic spline interpolation problem withnatural boundary conditions. In this case, the tridiagonal matrix algorithm plays a role in findingthe second derivative of each cubic spline sub-function so that it is more efficient in obtaining thecoefficients of the third order polynomials that form the cubic spline function
THE APPLICATION OF TRIDIAGONAL MATRIX ALGORITHM IN CUBIC SPLINE INTERPOLATION Elvathna Syafwan; EfendI -; Narwen -; Mahdhivan Syafwan
Jurnal Ipteks Terapan (Research Of Applied Science And Education ) Vol. 14 No. 3 (2020): Re Publish Issue
Publisher : Lembaga Layanan Pendidikan Tinggi Wilayah X

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (309.311 KB) | DOI: 10.22216/jit.v14i3.95

Abstract

Tridiagonal matrix algorithm is known to be more efficient in the computational process than theGaussian elimination method in solving linear system problems involving tridiagonal matrices. Inthis paper, the tridiagonal matrix algorithm is applied to the cubic spline interpolation problem withnatural boundary conditions. In this case, the tridiagonal matrix algorithm plays a role in findingthe second derivative of each cubic spline sub-function so that it is more efficient in obtaining thecoefficients of the third order polynomials that form the cubic spline function
Bilangan Ramsey Multipartit Himpunan untuk Kombinasi Graf Lintasan kecil dan Graf Bintang Syafrizal Syafrizal; Anggun Saputri Zain; Narwen Narwen; Effendi Effendi
Jurnal Matematika Integratif Vol 17, No 1: April 2021
Publisher : Department of Matematics, Universitas Padjadjaran

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (290.795 KB) | DOI: 10.24198/jmi.v17.n1.33077.1-4

Abstract

Diberikan dua graf $G_1$ and $G_2$, bilangan Ramsey multipartit himpunan $M_j(G_1,G_2)=t$ adalah bilangan asli terkecil sedemikian sehingga setiap faktorisasi graf $K_{t\times j}:=F_1\oplus F_2$ senantiasa memenuhi kondisi berikut: atau $F_1$ memuat $G_1$ sebagai subgraf, atau $F_2$ memuat $G_2$ sebagai subgraf . Pada paper ini, akan ditentukan nilai eksak dari bilangan Ramsey multipartit himupnan $M_3(P_n,K_{1,t})$ dimana $P_n$ adalah suatu lintasan dengan $n$ titik, $2\leq n\leq 3$, dan $K_{1,t}$ adalah suatu bintang dengan $t+1$ titik.
PEMROGRAMAN PEWARNAAN GRAF PADA PENJADWALAN MATA KULIAH JURUSAN MATEMATIKA Susila Bahri; Ghazy Muhari Novrial; Narwen Narwen
Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistika Vol. 4 No. 1 (2023): Jurnal Lebesgue : Jurnal Ilmiah Pendidikan Matematika, Matematika dan Statistik
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/lb.v4i1.260

Abstract

The scheduling of odd semester courses for the 2022/2023 Academic Year in the Mathematics and Data Science Department which is intended to avoid conflicts in the lecture implementation process, is prepared by colored dots on the graph. The dots are assumed to be courses while the edges of the graph are given to indicate that two courses cannot be arranged on the same schedule. Coloring with the Welsh-Powell method is carried out after the adjacency matrix which shows the relationship between the subjects is constructed. Class schedules with 8 subject groups (slots) are generated and distributed to each lecture session with a maximum of 5 sessions Monday to Friday. Course schedules with weights of 4 and 3 credits are carried out in 2 sessions each week. The application of the coloring method is done using the C++ program
Peningkatan Minat dan Kemampuan Santri Pondok Pesantren Al Ashry di Bidang Matematika Melalui Pendekatan Small Group Discussion Izzati Rahmi HG; Admi Nazra; Hazmira Yozza; Ferra Yanuar; Budi Rudianto; Susila Bahri; Narwen Narwen; Maiyastri Maiyastri; Haripamyu Haripamyu; Riri Lestari; Yudiantri Asdi; Efendi Efendi; Dodi Devianto; Zulakmal Zulakmal; Ahmad Iqbal Baqi; Arrival Rince Putri; Radhiatul Husna; Nova Noliza Bakar; Mawanda Almuhayar; Ikhlas Pratama Sandi
Warta Pengabdian Andalas Vol 30 No 4 (2023)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jwa.30.4.715-721.2023

Abstract

Mathematics is a field of study needed in various aspects of life. Accordingly, mathematics should always be considered a compulsory subject at every level of education, including in Islamic Boarding Schools. The fact shows that implementing mathematics learning in several schools needs to run optimally, especially in schools lacking teachers and limited educational facilities and infrastructure, such as The Al Ashry Islamic Boarding School, at the secondary level in Padang. This condition indicates that it is necessary to assist other parties to help students in their mathematics learning process. For this reason, the community service team of The Mathematics and Science Data Department of Andalas University conducted an intensive mathematics tutoring activity for The Al-Asyri Boarding School students. The activity carried out during September-December 2022 combined the lecture and the small group discussion approach. From the evaluation delivered by the students at the end of the activity, it can be concluded that this activity increased students’ interest, motivation, efficacy, and understanding of mathematics subject.
Kestabilan model penularan penyakit malaria di Indonesia Susila Bahri; Sri Ayu Ningsih; Narwen Narwen
Delta-Pi: Jurnal Matematika dan Pendidikan Matematika Vol 12, No 2 (2023)
Publisher : Universitas Khairun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33387/dpi.v12i2.6767

Abstract

Nyamuk Anopheles sp. lebih menyukai lingkungan tropis dan subtropis Indonesia. Menurut informasi Kementerian Kesehatan (Kemenkes), terdapat 415.140 kasus malaria di Indonesia pada tahun 2022. Penelitian ini bertujuan untuk mengetahui seberapa besar tingkat penularan penyakit malaria di Indonesia. Model matematika dapat dijadikan alternatif untuk menggambarkan permasalahan yang muncul guna memahami dinamika penularan malaria di Indonesia. Model  (Susceptible, Infected, Recovery), yang merupakan versi modifikasi dari model yang telah ada. Model ini memiliki dua titik equilibrium yaitu titik equilibrium bebas penyakit dan titik equilibrium endemik penyakit. Hasil penelitian ini menggunakan analisis kestabilan pada kedua titik equilibrium. Hasil menunjukkan bahwa kedua titik equilibrium tersebut stabil asimtotik. , , , dan . Dapat disimpulkan dari hasil tersebut bahwa bilangan reproduksi dasar bernilai    1, yang berarti penyakit malaria di Indonesia tidak akan menyebar dan pada akhirnya penyakit malaria akan hilang dari Indonesia. Kata kunci: Kestabilan Model, Malaria, Model
Co-Authors ADE NGESTU SULISTIO Admi Nazra Afifah Dwi Putri Ahmad Surya Aidilla Darmawahyuni ALEX MARDIANA ANGGUN DELVIANA Anggun Saputri Zain ARIF RAHMAN Arrival Rince Putri Asdi, Yudiantri ASEP TRI SAPUTRA Asmanelita Faizasari Aulia Radesa Baqi, Ahmad Iqbal Budi Rudianto Bukti Ginting Chintia Deva Rianti Citra Mayora Claudia Putri Zoelanda DEBI ZULKARNAIN Delvitri Murni Des Welyyanti Devianto, Dodi EFENDI . Efendi Efendi Efendi Efendi Effendi Effendi Effendi Effendi Elvathna Syafwan Faizah . Fauzana Hilma Fifi Febrianti Ghazy Muhari Novrial Hary Wahyudi Hazmira Yozza Helcy Yuhanna Herliani Evinda Ikhlas Pratama Sandi Imelda Roza Iqbal Sanjaya Ivo Muthia Izzati Rahmi HG Khairannisa Al Azizu Laksmi Charina Thasya Maiyastri, Maiyastri Mawanda Almuhayar MELATI NUR Mery Anggraini Mira Adriani Muthia Muhana Nadia Nadia Nailul Yuni Permataputri Nelli Hindriani Nelsa Andriana Nova Noliza Bakar Putri Wahyu Aisyah Putri Wulan Sari Radhiatul Husna Rendy Aditya Pratama Rifqi Riyandho Riri Lestari RIZKI REFORMAN RUVIQA PUTRI SOLEHA Sandi Wanda Harlan Shelli Fitrianda Sri Ayu Ningsih Sri Hariyani SUCI ANISA SYUHADA Suci Rahma Putri Susila Bahri Sutra Lidya Pritama Sutra Melcy Selvia Syafrizal Sy Syafrizal Syafrizal Syafwan, Mahdhivan Yanita Yanita Yanuar, Ferra Yosi Putri YOZA DELLA SYAUMI Yulianti, Lyra Zulakmal .