Jurnal Ilmiah Matematika dan Pendidikan Matematika

Journal Information
ISSN / EISSN : 2085-1456 / 2550-0422
Total articles ≅ 142
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Alisya Masturoh, Bambang Hendriya Guswanto, Triyani Triyani
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 15-26; https://doi.org/10.20884/1.jmp.2021.13.1.4428

Abstract:
The inverse kinematical problem of a robot arm is a problem to find some appropriate joint configurations for a pair of position and direction of a robot hand which is represented by a polynomial equations system. The system is solved by employing Groebner basis notion. Thus, the appropriate joint configurations for a pair of position and direction of the robot hand are obtained.
Resta Dwi Andina, Jajang Jajang, Supriyanto Supriyanto
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 1-14; https://doi.org/10.20884/1.jmp.2021.13.1.4353

Abstract:
Unequal distribution of income is one indicator of community welfare. Improving and equalizing the standard of living people in various regions is one of the efforts to realize national economic development. The existence of an unequal distribution of income also has an impact on economic development. This study discusses panel data regression analysis to determine the factors that affect the unequal distribution of income in Java from 2014 to 2020 with the help of Eviews 10 software. The factors that are thought to affect unequal distribution of income in this study are the Human Development Index (HDI), Open Unemployment Rate (OPR), Regional Gross Domestic Product (RGDP) per capita, and total of poor people. The fixed effects model (FEM) was chosen to be the best model. The results showed that the HDI and RGDP per capita variables had negative and significant effect on unequal distribution of income in Java from 2014 to 2020.
Khoirunnisa Salsabila, Renny Renny, Sulman Edi Supriyanto
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 39-48; https://doi.org/10.20884/1.jmp.2021.13.1.4464

Abstract:
Queues can occur when the need for a service exceeds the available capacity for that service. This study aims to determine the queuing model for the regional service vehicle apel activity in Banyumas Regency in 2020, the effectiveness of the number officers service, and create a simulation model of the queuing model. Based on the results of the research, it can be concluded that the queuing system at the vehicle service with two officers uses a single-phase multi-channel queue structure, queuing discipline is First Come First Served and distribution arrival is Poisson and services with Eksponensial distribution, so the queuing model used is (M/M/s). From the results of calculations using POM for windows the level of service activity is 50% of the times, the average number of apple participants in the system is 1,33 people, the average number of apple participants in the queue is 0,33 people, the average time in the system is 6,6 minutes and the average time in the queue is 1,8 minutes. Because the results of the calculation (1-r) are 50% of the break time, so the regional service vehicle apel in Banyumas Regency in 2020 officer is enough with two officers and has been effective.
Mella Apriyani, Jajang Jajang, Agustini Tripena Br. Sb.
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 27-38; https://doi.org/10.20884/1.jmp.2021.13.1.3612

Abstract:
There are three types of Tuberculosis (TB) patients at Banyumas Region Hospital, namely negative pulmonary TB, positive pulmonary TB, and extra pulmonary TB. Types of TB generally caused by age, cae of history, gender, level of education, and domicile. One of the methods that used to find a correlation between types of TB with the affect is regression analysis. This study used multinomial logistic regession analysis because types of TB is categorical and the data is 156 TB’s patients recorded at 2018/2019. The result showed that the level of education be a dominant factor to affect TB. Here, we noted that patients with basic education level have a 5,843 time odds for getting positive pulmonary TB and 2,224 times for getting extra pulmonary TB. The multinomial logistic regression model is then given as probability for getting positive pulmonary TB with factor level of education is greather than negative pulmonary TB and extra pulmonary TB.
Jajang Jajang, Sylvia Meilani
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 49-60; https://doi.org/10.20884/1.jmp.2021.13.1.4363

Abstract:
An information on the data is not easily obtained if the data is not presented well. The nutritional needs of toddlers are important to be studied to get an information about growth of these toddlers. This research studied the nutritional needs and its factors by using Artificial neural networks (ANN) model. These factors are toddler's age, gender, weight, height, activity. Nutrition data for children under five years old was obtained from interviews at 47 Posyandu locations. The results showed that the resulting ANN model gave quite good results where the error value generated was 0.024
Wella Ayu Sheilliarika, Sri Maryani, Hendi Efendi
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 43-48; https://doi.org/10.20884/1.jmp.2020.12.2.3741

Abstract:
Director General of the World Health Organization (WHO) Tedros Adhanom Ghebreyesus officially announced the coronavirus (COVID-19) as a pandemic, on March 11, 2020. To prevent the spread of coronavirus in Indonesia a Work From Home (WFH) policy, Large-Scale Social Restrictions (PSBB) was made. , as well as limiting the mobility of people from one area to another. One of them is PT Kereta Api Indonesia which directly reduces the number of long-distance train trips. Because of the dangers of the coronavirus and the issuance of government policies, citizens swiftly comply with the policies that have been issued. Therefore, it is necessary to know whether there is an influence on the passenger volume of the economi class Train (KA) before and after the Covid-19. The method used for known data is the Comparative Hypothesis Test. The decision obtained was that there was an influence on the volume of economi class train passengers before and after the Covid-19.
Jajang Jajang, Supriyanto Supriyanto, Dimas Eka Putra
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 29-41; https://doi.org/10.20884/1.jmp.2020.12.2.3613

Abstract:
In this research, PLS method is applied to analyze which factor are affect employee performance in PT. Kereta Api Indonesia (Persero) DAOP 5 Purwokerto based on variables that are research factors that is employee performance, work motivation, leadership, training, work enviroment and corporate culture through the indicator which are then analyzed. From analysis using a PLS method with 6 variables of research, it was found that R-square value work of motivation variables of 77,00% with good assessments defined by construct variable of leadership, training, work enviroment and corporate culture while another 23% is described by other variables outside this research. The value of R-square on employee performance variables of 66,00% with good enough assessment criteria described by the work of motivation, where as another 34% is described by other variables outside this research model.
Priska Sari Dewi, Triyani Triyani, Siti Rahmah Nurshiami
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 63-79; https://doi.org/10.20884/1.jmp.2020.12.2.3617

Abstract:
Travelling Salesman Problem (TSP) is a problem to find the shortest path a salesman visitS all the cities exactly once, and return to the starting city. In this reseacrh, the methods for TSP used are the nearest insertion method, the cheapest insertion method, and the farthest insertion method. With help the function of Software R to creat a minimum TSP Program from three insertion methods.The TSP results for same number of point using three insertion methods do not always have the same weight and route but depending on the data used.
Faiq Fauziya Putri, Triyani Triyani, Ari Wardayani
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 49-62; https://doi.org/10.20884/1.jmp.2020.12.2.3619

Abstract:
This article discusses fundamental properties of hypergraphs. Hypergraphs are generalization of graph which hyperedges, edges in hypergraph, can join more than two vertices. The fundamental properties in this article are the vertices degrees, connection in hypergraphs, and dual hypergraph. connectivity in hypergraphs in this article are walks, trails, strict trails, path, and cycles. In the end of this article, we present a few examples of problems that can be represented by hypergraph.
Yusrina Ratna Annisa, Jajang Jajang, Agus Sugandha
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 1-13; https://doi.org/10.20884/1.jmp.2020.12.2.3615

Abstract:
One of the targets of the Sustainable Development Goals (SDGs) is to reduce the maternal mortality rate by 2030. In reducing the maternal mortality rate, it is necessary to first study the factors that influence it. The number of maternal mortality rate in Central Java Province in 2018 was a discrete random variable that had a Poisson distribution and had many zero values. Generally, a model was used to counting data is Poisson regression model. However, the maternal mortality that has many zero values caused overdispersion. Therefore, Poisson model was not relevant in that case. In this paper, we used Zero Inflated Poisson (ZIP) model to overcome overdispersion caused by many zero values. The results of the research show that ZIP model can explained influence the number of maternal mortality. Based on this research, the factors such as provision of tablets, pregnant women who experience obstetric complications, and households with a clean and healthy lifestyle can explain the number of maternal mortality.
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