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All Journal International Journal of Electrical and Computer Engineering Journal of the Indonesian Mathematical Society Sinkron : Jurnal dan Penelitian Teknik Informatika Abdimas Talenta : Jurnal Pengabdian Kepada Masyarakat Building of Informatics, Technology and Science MES: Journal of Mathematics Education and Science Journal of Research in Mathematics Trends and Technology Journal of Applied Data Sciences
Saib Suwilo
Department of Mathematics, University of Sumatera Utara
Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Law, Crime, Criminology & Criminal Justice Mathematics Social Sciences

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Journal : Journal of Research in Mathematics Trends and Technology

 1 
Analysis of Rainfall Transition Probability Using Markov Chain Method Pasaribu, Suhendri; Suwilo, Saib; Mawengkang, Herman
Journal of Research in Mathematics Trends and Technology Vol. 7 No. 2 (2025): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v7i2.21719

Abstract

This research applies the Markov Chain model to examine daily rainfall data in Medan City. Markov chain is one of the methods used for forecasting in various fields, such as economics, industry, and climate. This research uses secondary data of daily rainfall intensity from the BMKG Station of the Center for Meteorology, Climatology and Geophysics Region I. The purpose of this research is to determine the transition probability (probability of transition). This study aims to determine the chance of transition (displacement) of daily rainfall intensity, There are four conditions of rainfall intensity that are categorized, namely no rain, light rain, moderate rain, and heavy rain. The Markov Chain method used is the Champman- Kolmogorov Equation and the steady state equation. The fixed probability of not raining is 59.16%, the fixed probability of light rain is 17.67%, the fixed probability of moderate rain is 16.28%, and the fixed probability of heavy rain is 6.86%.
Existence of Polynomial Combinatorics Graph Solution Mardiningsih; Suwilo, Saib; Hasbiyati, Ihda
Journal of Research in Mathematics Trends and Technology Vol. 2 No. 1 (2020): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v2i1.3755

Abstract

The Polynomial Combinatorics comes from optimization problem combinatorial in form the nonlinear and integer programming. This paper present a condition such that the polynomial combinatorics has solution. Existence of optimum value will be found by restriction of decision variable and properties of feasible solution set or polyhedra.
Vertex Exponent of Asymmetric Two-coloured Cycle Syahmarani, Aghni; Suwilo, Saib
Journal of Research in Mathematics Trends and Technology Vol. 2 No. 2 (2020): Journal of Research in Mathematics Trends and Technology (JoRMTT)
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jormtt.v2i2.4679

Abstract

This paper is about an asymmetric two-coloured cycle. Let D be an asymmetric two-coloured cycle on n vertices, where n is odd and n >= 3, we show that the exponent of the k-th vertex of D is exactly (n2-1)/4 + ⌊ k/2 ⌋.
Co-Authors Aghni Syahmarani Aghni Syahmarani Ahmad Zaki Mubarak, Ahmad Zaki Ainun, Nur'ainun Amlys, Amlys Syahputra Silalahi Bayu Christy, Claudia Dardanila, Dardanila Efendi, Syahril Elly Rosmaini Elviwani Erna Budhiarti Nababan Eva Sartini Eva Sartini Bayu Eva, Eva Sartini Bayu Farida , Farida Ariani Farida Ariani Feren, Feren Fitrie, Rosa Gayus Simarmata, Gayus Harahap, Desti Alannora Hariadi , Hariadi Susilo Hasibuan, Shubuhan Syukri Herawati, Elvina Herman Mawengkang Ma'ruf, Ma'ruf Tafsin Mardiansyah, Heru Mardiningsih Mardiningsih , Mardiningsih Mardiningsih Mardiningsih Marpaung, T.J. Marpongahtun Muhammad Zarlis, Muhammad Nasution, Putri Khairiah Nur’ainun Opim Salim Sitompul Pasaribu, Suhendri Peni Patriani Peni, Peni Patriani Prandana, Randy Pujiana, Perli Pulungan, Annisa Fadhillah Putri, Mimmy Sari Syah Rezeki, Ema Sri Riansyah, Muhammad Rizka Fitria, Rizka Rumahorbo, Yuli Silalahi, Amlys Syahputra Sukiman, T. Sukma Achriadi Susilo, Hariadi Sutarman Sutarman Sutarman Syahmrani, Aghni Tafsih, Ma'Ruf Tafsin, Ma’ruf Tarigan, Aam Jon Mintase Tarigan, Ruffiana Tugiman Tugiman Tugiman Tulus Tulus Tulus Yanti, Maulida