Jurnal Ilmiah Matematika dan Pendidikan Matematika

Journal Information
ISSN / EISSN : 2085-1456 / 2550-0422
Total articles ≅ 155
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Alfatah Hidayat, Siti Rahmah Nurshiami, Mashuri Mashuri
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 27-44; https://doi.org/10.20884/1.jmp.2021.13.2.4873

Abstract:
Quine McCluskey method is one method that can be used to simplify the Boolean function. The Quine McCluskey method has several advantages including having simpler, more systematic steps than other methods and it is easier to simplify the Boolean function with a large number of variables. This study discusses the design of a Boolean function simplification program for the Quine McCluskey method using Visual Basic 6.0. The resulting program can simplify the Boolean function with many variables less than equal to 26 variables and able to simplify the Boolean function in the form of Sum of Product (SOP), Product of Sum (POS), and don't care.
Ari Wardayani, Mitha Cerinda, Idha Sihwaningrum, Mutia Nur Estri, Wuryatmo Ahmad Sidik
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 45-56; https://doi.org/10.20884/1.jmp.2021.13.2.4905

Abstract:
In this paper we will present two properties of subsemihypergroups. The first property is a relation between subsemihypergroups and semihypergroup. This property enable us to get the second property, which provides a relation between subsemihypergroups and regular semihypergroups.
Najmah Istikaanah, Ari Wardayani, Renny Renny, Ambar Sari Nurahmadhani, Agustini Tripena Br. Sb.
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 71-80; https://doi.org/10.20884/1.jmp.2021.13.2.4968

Abstract:
This article discusses some properties of regular semigroups. These properties are especially concerned with the relation of the regular semigroups to ideals, subsemigroups, groups, idempoten semigroups and invers semigroups. In addition, this paper also discusses the Cartesian product of two regular semigroups. Keywords:ideal, idempoten semigroup, inverse semigroup, regular semigroup, subsemigroup.
Niken Larasati, Tri Puji Sulistyoningrum, Mutia Nur Estri, Idha Sihwaningrum, Rina Reorita
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 93-104; https://doi.org/10.20884/1.jmp.2021.13.2.4949

Abstract:
Pada makalah ini dibahas mengenai prediksi berat tubuh sapi perah Friesian-Holstein menggunakan model Von Bertalanffy. Laju metabolisme pada model terdiri dari anabolisme dan katabolisme. Prediksi berat tubuh sapi perah ini penting karena dapat digunakan untuk menentukan usia kawin pertama kali sapi perah FH. Usia kawin pertama yang tidak tepat dapat menyebabkan produksi susu yang rendah dan tidak tercapainya berat tubuh pedet yang ideal. Dari hasil simulasi diperoleh konstanta anabolisme sebesar 0,3854 dan konstanta katabolisme sebesar 0,0438. Dengan konstanta tersebut, diperoleh rata-rata kesalahan absolut sebesar 4,9708% (6,5358 kg). Selanjutnya, diperoleh hasil bahwa sapi dapat dikawinkan pada saat memiliki berat tubuh 273,9152 kg sampai 303,2340 kg dengan umur 59-66 minggu (14-16 bulan).
Umi Muslimah, Agus Sugandha
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 127-140; https://doi.org/10.20884/1.jmp.2021.13.2.5011

Abstract:
Cassava are one of the staple foods in place of rice. However, today almost no one consumes cassava as a staple food substitute for rice. Indonesia is ranked third as the world's largest producer of cassava. Therefore, to maintain the value of yam production, the author will look for linear regression models as well as the best models with factors that are harvest area and productivity. Productivity is defined as the result of a comparison between the area of harvest and production. To search for regression models use multiple linear regression methods, while the best models use stepwise methods. Based on existing data, the best model is obtained with negative interception and influenced by productivity and the extent of the yam harvest.
Evi Yulianti, Agus Sugandha
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 81-92; https://doi.org/10.20884/1.jmp.2021.13.2.5014

Abstract:
Violence against women is one of the cases that often gets attention and news in various mass media and electronic media today. In Komnas Perempuan's Annual Records, there were 406,178 cases of violence against women reported and handled throughout 2018. This number increased compared to the previous year's 348,466 cases. This study was conducted to try to group 35 districts/cities in Central Java into 3 clusters based on the number of women (age 18+) victims of violence. Grouping is done using the k-means cluster method. The regencies/cities in Central Java are grouped into 3 clusters, namely: cluster 1 there is 1 Regency/City with a high number of women (age 18+) victims of violence, cluster 2 there are 4 Regency/City with a high number of victims of violence. female (age 18+) victims of violence. moderate, and cluster 3 there are 30 districts/cities with a low number of women (age 18+) victims of violence.
Meta Kurniawati
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 1-12; https://doi.org/10.20884/1.jmp.2021.13.2.4318

Abstract:
Paddy is one of the staple food crops that almost all Indonesians consume every day. Central Java Province is one of the national food buffer provinces, therefore a model is needed to predict the amount of paddy production in Central Java Province for the future. The amount of paddy production in Central Java Province is not constant and fluctuates every year, so the one-parameter Triple Exponential Smoothing model of the Brown type is used to predict the amount of paddy production in Central Java Province. Based on the results of the analysis of the data, it was obtained that the one-parameter Triple Exponential Smoothing model of the Brown type which is appropriate to be used to predict the amount of paddy production in Central Java Province is F28+m=9485520,31-536660,01(m)+(0,5)(-91215,38)(m2), where the number of periods from 1 to 5.
Mashuri Mashuri, Sulistiowati Nur Rahmi, Marwah Daud Wijayanti, Alviana Pratama Putri
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 105-112; https://doi.org/10.20884/1.jmp.2021.13.2.5028

Abstract:
In this paper, we discuss the solution of the Poisson equation with some initial condition. We use the homotopy pertubation method to get the solution.. The homotopy pertubation method is a combination of the homotopy method and the pertubation method. The solution of the equation is assumed to be in the form of a power series. The result is by using the homotopy pertubation method for the diffution equation, the solution is the same with the exact solution.
Shafa Nanda Puspita, Sri Maryani, Herry Purwantho
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 141-154; https://doi.org/10.20884/1.jmp.2021.13.2.4546

Abstract:
Labor absorption is an important factor in supporting economic development through national income. The low level of employment is still a problem in various regions in Indonesia, especially in Central Java Province. The problem of employment, can be overcome by maximizing the factors that affect the increase in labor absorption. Therefore, it is necessary to analyze the factors that are thought to affect the increase in labor absorption. This study aims to analyze the factors that influence labor absorption in Central Java Province. This study uses a descriptive quantitative approach with a panel data regression model. The best model selection test used is the Chow test, Hausman test, and Lagrange Multiplier test (LM) Test which was carried out using the Eviews 9 software. This study uses cross section data from 35 districts/cities in Central Java Province and time series data on the number of workers, labor force, unemployment, minimum wages, and GRDP of each district/city for the 2015-2020 period. The results of the discussion show that simultaneously and partially the number of workers, the number of the workforce, the number of unemployed, the minimum wage, and GRDP have an effect on the absorption of labor in Central Java Province.
Dwi Anggraeni, Sri Maryani, Suseno Ariadhy
Jurnal Ilmiah Matematika dan Pendidikan Matematika, Volume 13, pp 155-166; https://doi.org/10.20884/1.jmp.2021.13.2.4548

Abstract:
Poverty is a major problem in a country. The Indonesian government has made various efforts to tackle the problem of poverty. The main problem faced in poverty alleviation is the large number of people living below the poverty line. Therefore, this study aims to predict the poverty line in Purbalingga Regency for the next three periods as one of the efforts that can be made by the government in poverty alleviation. The method used in this study is a one-parameter linear double exponential smoothing from Brown. The software used in this research is Zaitun Time Series and Microsoft Excel. The steps taken are determining the forecasting objectives, plotting time series data, determining the appropriate method, determining the optimum parameter value, calculating the single exponential smoothing value, calculating double exponential smoothing value, calculate the smoothing constant value, calculate the trend coefficient value and perform forecasting. Based on the calculation results, the optimum alpha parameter value is 0.7 with MAPE value of 1.67866%, which means that this forecasting model has a very good performance. The forecast value of the poverty line in Purbalingga Regency for 2021 is Rp. 396,516, in 2022 it is Rp. 417,818, and in 2023 it is Rp. 439,120.
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