Jurnal Ilmiah Matematika dan Pendidikan Matematika

Journal Information
ISSN / EISSN : 2085-1456 / 2550-0422
Current Publisher: Universitas Jenderal Soedirman (10.20884)
Total articles ≅ 16
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Latest articles in this journal

Faiq Fauziya Putri, Triyani Triyani, Ari Wardayani
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 49-62; doi: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.
Jajang Jajang, Supriyanto Supriyanto, Dimas Eka Putra
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 29-41; doi: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; doi: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.
Wella Ayu Sheilliarika, Sri Maryani, Hendi Efendi
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 43-48; doi: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.
Yusrina Ratna Annisa, Jajang Jajang, Agus Sugandha
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 1-13; doi: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.
Nurul Azizah Baisaku, Bambang Hendriya Guswanto, Dian Linawati
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 15-28; doi:10.20884/1.jmp.2020.12.2.3588

Abstract:
Land values in NJOP used as a basis for taxing land are often different from land values in the Land Value Zone (ZNT). The difference in land values contained in the NJOP and ZNT causes uncertainty about local tax revenue and creates injustice for the government and the community. Based on this, an analysis of Assesment Sales Ratio (ASR) is used to determine the determination of land values in NJOP with ZNT against the standard size determined by the International Association of Assessing Officers (IAAO). The results of the ASR analysis show that the determination of NJOP in Pamijahan Village, Plumbon District, Cirebon Regency is outside the standard range set by the IAAO, which is 0.90 to 1.10 (90% -110%). This can be seen from the results of the measurement of central tendency, which is a mean of 10.53%, a median of 0.1037, and a weighted mean of 6.136%. The comparisons between components of the measurement results of the central tendency indicate the occurrence of regressivity or downtrend. The Assessment Ratio in Pamijahan Village, Plumbon District, Cirebon Regency also did not show good uniformity, as indicated by a COD value of 0.66% and a COV value of 70.02% which were outside the standard set by IAAO i.e. the minimum and maximum values for COD and COV are 5% and 20%, respectively.
Bambang Hendriya Guswanto, Alisya Masturoh, Triyani Triyani
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 1-13; doi:10.20884/1.jmp.2020.12.1.2825

Abstract:
This article discusses a forward kinematics space for a robot’s hand with n arms in two dimensional Euclid space. The kinematics space of the robot’s hand is obtained by employing some geometrical transformations, those are rotation and dilatation. The solution of this problem is represented by a function corresponding a set of pairs of hinge configuration with a set of pairs of robot’s position and hand endpoint direction.
Afifah Hayati
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 15-24; doi:10.20884/1.jmp.2020.12.1.2481

Abstract:
Pada ruang metrik, didefinisikan pemetaan quasi-kontraksi yang diperumum dari pemetaan quasi-kontraksi. Pada jurnal ini, akan dibahas mengenai teori titik tetap untuk pemetaan quasi-kontraksi yang diperumum pada ruang bermodular
Dian Pratama
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 35-46; doi:10.20884/1.jmp.2020.12.1.2613

Abstract:
Intuitionistic fuzzy sets is a sets that are characterized by membership and non-membership function which sum is less than one. When applied to ring theory, it will called intuitionistic fuzzy rings. The fuzzy set operator is a mapping between the membership function and the interval [0,1]. In this study, we will describe properties of operator and in intuitionistic fuzzy rings. The characteristics that will be studied include the structure of and if A is an intuitive and fuzzy ring and vice versa.
Noor Sofiyati
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 12, pp 25-33; doi:10.20884/1.jmp.2020.12.1.2826

Abstract:
Binomial Model is one of method to determine the option price. In this model, assumed that the stock price only move up or down in the each steps. In this journal will be reviewed the risk neutral world assumption and real world to determine option price and knowing how to calculate option payoff for european option from stock price use Binomial Multiperoid Model with different strike price.
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