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All Journal SAINSMAT Journal of ICT Research and Applications Jurnal Daya Matematis BAREKENG: Jurnal Ilmu Matematika dan Terapan LOSARI: Jurnal Pengabdian Kepada Masyarakat Issues in Mathematics Education (IMED) Journal of Mathematics: Theory and Applications Seminar Nasional Pengabdian Kepada Masyarakat Makara Journal of Technology Indonesian Journal of Fundamental Sciences Seminar Nasional Hasil Penelitian LP2M UNM Jurnal Hasil-Hasil Pengabdian dan Pemberdayaan Masyarakat (JHP2M) Journal of Mathematics, Computation and Statistics (JMATHCOS) Issues in Mathematics Educations (IMED)
Rahmat Syam
Jurusan Matematika Fakultas Matematika Dan Ilmu Pengetahuan Alam Universitas Negeri Makassar
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Sosialisasi, Instalasi, dan Penggunaan Software Open-Source LibreOffice Writer bagi Guru di Kabupaten Bantaeng Mas'ud, Syamsuddin; Syam, Rahmat; Ihsan, Hisyam
LOSARI: Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 1 (2024): Juni 2024
Publisher : LOSARI DIGITAL

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53860/losari.v6i1.191

Abstract

The Community Partnership Program (PKM) activities are carried out in Bantaeng Regency, South Sulawesi Province. The partners in this PKM activity are the teachers from the Mathematics Subject Teachers' Meeting (MGMP) at junior high schools (SMP) in Bantaeng Regency. However, in its implementation, in addition to SMP teachers, it is also attended by elementary school (SD), high school (SMA), and vocational high school (SMK) teachers. Among the objectives of this program are a) Socializing open-source software LibreOffice as an alternative to licensed Microsoft Office software; b) Providing knowledge to partners about the installation of LibreOffice software and the basics of using LibreOffice Writer. Some of the issues faced by the partners include a) knowledge about open-source software; b) Installation and basics of using LibreOffice Writer. This socialization and training are carried out for a group of partners, consisting of approximately 11 people, through online sessions via Zoom meetings. The expected outcomes are an understanding of the socialization materials, the installation of the application, and the basics of using the LibreOffice Writer application.
Peramalan Penjualan dengan Metode Exponential Smoothing (Studi Kasus : Penjualan Bakso Kemasaan/Kiloan Rumah Bakso Bang Ipul) Hisyam Ihsan; Syam, Rahmat; Fahrul Ahmad
Journal of Mathematics, Computations and Statistics Vol. 1 No. 01 (2018): Volume 01 Nomor 01 (April 2018)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

Sales forecasting enables an optimal policy of the company had to make the appropriate decisionand maintain the efficiency of operational activities. Rumah Bakso Bang Ipul is a business that sellspackaged meatballs. Therefore, Rumah Bakso Bang Ipul is in need of sales forecasting to increase profitand avoid the occurrence or lack of supply of packaged meatballs. This research was conducted by themethod of exponential smoothing forecasting. As for parameter or a used predicting sales is a =0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8, and 0.9. single exponential smoothing do a comparison in determining thevalue of a, by searching for the value of such a trial and error to find a that has minimum error with searchmethod using the mean absolute error (MAE) and mean squared error (MSE). So that selected a = 0.1 withMAE value = 6.23 and MSE Value = 58.32. Based on these results, using the method of single exponentialsmoothing and retrieved results forecasting Rumah Bakso Bang Ipul in July 2018 as much as 48 kilograms.
Prediksi Harga Kontrak Opsi Asia dalam Perdagangan Pasar Saham dengan Menggunakan Metode Monte Carlo Rahmat Syam; Ahmad Zaki; Muhammad Hasriyadi Basri
Journal of Mathematics, Computations and Statistics Vol. 1 No. 01 (2018): Volume 01 Nomor 01 (April 2018)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

Option is a contract that gives rights (not obligations) to the contract holder (option buyer) to buy or sell a certain asset of a company to the option writer (option writer). Monte Carlo is a method that requires a simulation model that includes random numbers and samples based on computers. The simulation procedure involves generating random numbers by providing a probability density and using the law of large numbers to get the average of its values as an estimator of the expected value of the random variable. This study aims to predict stock option prices in the future and as a material consideration for stock trading players to make a decision to sell or buy options for a stock using Matlab software. The type of research used is applied research using the Monte Carlo method to simulate stock data. The results show that the more iterations are carried out, the predictive value is also getting better and converging to a value. The predictive value is stable at the 60000th iteration with an error value of MAPE of less than 20% so that the predicted value can be said to be good.
Analisis Dan Simulasi Persamaan Differensial Pada Pemodelan Penyakit Campak di Kota Pare-pare Syafruddin Side; Rahmat Syam; Meisy Tri Elsa
Journal of Mathematics, Computations and Statistics Vol. 1 No. 02 (2018): Volume 01 Nomor 02 (Oktober 2018)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

This research discusses the SEIRV model of measles. The data used is the number of people with measles in Parepare City in 2015. This data is obtained from Parepare City Health Department. The discussion begins with constructing the SEIRV model of measles,determining the equilibrium point and analyzing the stability. Then, creating a simulation model. This research is conducted by using method of literature study. It is expected to proside an overview of the SEIRV mathematical model. The steps taken are identifying the problem, formulating assumptions to obtained, vaccination is the best way to cure measles
Model Transportasi dan Terapannya dalam Optimalisasi Biaya Distribusi Beras Miskin di Kota Makassar oleh Perum Bulog Sub Divre Makassar Tahun 2016 Rahmat Syam; Sukarna; Muh Nahdi Alim Asyhari
Journal of Mathematics, Computations and Statistics Vol. 2 No. 02 (2019): Volume 02 Nomor 02 (Oktober 2019)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

This study discusses the transportation model and its application on the stock of Rice Poor (Raskin) in Makassar City by Perum Bulog Sub Divre Makassar. Data is processed by Transport Model. Based on the model is generated a balance model, and export table Raskin distribution,. By method. (LC) and Vogel's Approximation Method (VAM) obtained a feasible initial solution. The method using the stepping stone method (Stepping Stone method). It is then simulated using the Pom for Windows application. The results of this study indicate with the application of Transportation Model. In the year. Year 2016 amounted to 1.7% of the calculation of Perum Bulog Sub Divre Makassar.
Analisis Intervensi Kebijakan Kenaikan Tarif Dasar Listrik (TDL) Tahun 2017 Terhadap Pemakaian Listrik Wilayah SULSELRABAR Ahmad Zaki; Rahmat Syam; Ahmad Firjatullah Hakim
Journal of Mathematics, Computations and Statistics Vol. 2 No. 01 (2019): Volume 02 Nomor 01 (April 2019)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

This research is an implementation research about intervention analysis that modelling time series data effected by the existence of an event or intervention. This research aimed to determine the model of intervention of the step function with time of intervention (T) derived from process of ARIMA preintervensi modelling, identification of response of intervention, intervention parameter estimation and examination diagnosis of intervention model. As for the data that was used in the form of data of the using of electricity (in KWh), the category of households with power of 900 VA, South Southeast West Sulawesi Region (SULSELRABAR) from January, 2016 to December, 2017 were obtained from PT PLN Persero SULSELRABAR Area Of Makassar. Based on the analysis result obtained that there is derivation towards the using of electricity in the month after the intervention, it shows the impact of government policies that raising the electricity base tarif rate (defined as the intervention).
Model Regresi Nonparametrik dengan Pendekatan Spline (Studi Kasus: Berat Badan Lahir Rendah di Rumah Sakit Ibu dan Anak Siti Fatimah Makassar) Wahidah Sanusi; Rahmat Syam; Rabiatul Adawiyah
Journal of Mathematics, Computations and Statistics Vol. 2 No. 01 (2019): Volume 02 Nomor 01 (April 2019)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

The non-parametric approach is an approach that is used if the form of the relationship between the response variable and the predictor variable is unknown or the absence of information about the shapes of regression functions. The Spline is a technique performed to estimate the parameters in the nonparametric regression. This study aims to determine the model of the relationship between low birth weight and the factors that affect the based on the spline model. Such factors are maternal age, gestational age, and pregnancy distance. The Data is obtained from the mother and child hospital siti Fatimah Makassar 2017. Where to get a spline model best the initial step is to determine the knots with the value of the Generalized Cross Validation (GCV) which is a minimum. Based on the research that has been done, the two variables stated effect against low birth weight, namely age of mother, and gestational age. Nonparametric regression Model with the approach of the Spline that is formed has a coefficient of determination of 78.19 to%, as well as the value of the GCV with a three-point knot that is 0.0117.
Aplikasi Pewarnaan Graf dengan Algoritma Recursive Largest First pada Penjadwalan Mata Kuliah Rahmat Syam; Hisyam Ihsan; Asman
Journal of Mathematics, Computations and Statistics Vol. 2 No. 01 (2019): Volume 02 Nomor 01 (April 2019)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

This research discusses the colorization of graph vertex using algorithm of Recursive Largest First (RLF) in scheduling courses in one of the study programs at one of the universities in Makassar. Representation of problems in scheduling courses was done by making it in the shape of the graph assuming subjects as vertex and the presence of the same lecturers teach different courses as a side. The steps in solving a problem that was mapping the lectures data, representing the lectures data as a graph, forming adjacency matrix, coloring the graph vertex using algorithm of RLF, so that the schedule was retrieved. Scheduling of courses using the colorization of graph vertex with algorithm of RLF as well as the help of VBA for Microsoft Excel 2016 at Faculty of Animal Husbandry obtained 102 vertices with 25 colors indicates that it takes 25 of lecture schedules. The number of vertices that were colored with the same color ≤ 6 vertices meaning in every slot needed 6 lecture rooms in maximum. Scheduled courses are guaranteed that no schedule conflicts for each lecturer of courses taught.
Metode Automatic clustering-fuzzy logical relationships pada Peramalan Jumlah Penduduk di Kota Makassar Muhammad Abdy; Rahmat Syam; Elfira Haryanensi A
Journal of Mathematics, Computations and Statistics Vol. 1 No. 02 (2018): Volume 01 Nomor 02 (Oktober 2018)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

This research is the application of the forecasting method of fuzzy time series which is the method of automatic clustering fuzzy-logical relationships in forecasting the population of Makassar City using secondary data from BPS Makassar city which aims to predicting the population in year 2017-2021. The discussion starting from the determination of the length of the interval, determining the value of the middle length interval, making relations of fuzzy logic, fuzzification, defuzzification, and calculating the error value of the forecasting result by using the method of Mean Absolute Percentage Error. The result of this research shows that the predictions of the population of Makassar City from 2016 to 2017 increased, from 2017 to 2019 decreased, and in 2019-2021 increased with the very good accuracy.
Bilangan Kromatik Pewarnaan Titik pada Graf Dual dari Graf Roda Abdy, Muhammad; Syam, Rahmat; Tina, Tina
Journal of Mathematics, Computations and Statistics Vol. 4 No. 2 (2021): Volume 04 Nomor 02 (Oktober 2021)
Publisher : Jurusan Matematika FMIPA UNM

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Abstract

This research aims to construct a dual graph from a wheel graph (Wn*) and determine the dual graph chromatic number of the wheel graph (Wn*). This research starts from describing some wheel graph from to , then construct a dual graph from a wheel graph from to , then gives color to the vertices of the dual graph by determining the chromatic number. The result showed that the wheel graph is a self-dual graph because it is isomorphic with its dual graph, namely . The vertex coloring is obtained by determining the chromatic number of the dual graph of the wheel graph, determining the pattern of the chromatic number and giving the color. Based on the research results, the chromatic number of vertex coloring on dual graph of a wheel graph is:
Co-Authors A. Asman Abdullah, Adib Roisilmi Agnes Monica Putri Agusalim Juhari Ahmad Firjatullah Hakim Ahmad Firjatullah Hakim Ahmad Zaki Ahmad Zaki AHMAD ZAKI Asep Ardat Asep Ardat Asman Awi Dassa Awi Dassa Basri, Muhammad Yusran Elfira Haryanensi Elfira Haryanensi A Fahrul Ahmad Fahrul Ahmad Hamzah Upu Hisyam Ihsan Jusman Jusman Lubis, Kristina Marwan Marwan Mauridhi Herry Purnomo Mauridhi Hery Purnomo Mauridhi Purnomo Mauridhi Purnomo, Mauridhi Meisy Tri Elsa Meisy Tri Elsa Mochamad Hariadi Mochamad Hariadi Muh Nahdi Alim Asyhari Muh Nahdi Alim Asyhari Muhammad Abdy Muhammad Abdy Muhammad Abdy Muhammad Abdy Muhammad Farhan Muhammad Hasriyadi Basri Muhammad Hasriyadi Basri Muhammad Irham Muktamar Muhammad Yusran Basri Muktamar, Muhammad Ilham Muktamar, Muhammad Irham N. Nurmah Nurdin Arsyad Nurdin Arsyad Nurhiqmah Takbir Nurmah, Nurmah Rabiatul Adawiyah Rabiatul Adawiyah Sainon Andi Pandjajangi, Andi Muhammad Ridho Yusuf Sari, Yulfiana Sidjara, Sahlan Siti Khodidah Siti Khodidah Sukarna Sukarna Sukarna Sukarna Sukarna Sulaiman Sulaiman Sulaiman Sulaiman Syafruddin Side SYahnur, Andi Aulia Syamsuddin Mas'ud T. Tina Tina, Tina Usman Mulbar Wahidah Sanusi Wahyuni, Maya Sari Yusuf SAP, Andi Muh. Ridho