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Journal of Mathematics UNP

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Published by Universitas Negeri Padang

ISSN : 23551658 EISSN : 28073460 DOI : http://dx.doi.org/10.24036/unpjomath.v7i3.12564

Core Subject : Science, Education,

Computer Science & IT Decision Sciences, Operations Research & Management Mathematics

Journal of Mathematics UNP is a journal to publish article from student researches in UNP Mathematics study program, and we also kindly accept other article from outside of our study program related to Mathematics: consists of publication in Algebra, Analysis, Combinatoric, Geometry, Differential Equations, Graph and/or Mixed Mathematics Applications: consists of publication in Application of Differential Equations, Mathematics Modelling, Mathematics Physics, Mathematics Biology, Financial Mathematics, Application of Graph and Combinatorics, Optimal Control, Operation Research, and/ or Mixed Statistics: consists of publication on Development and/ or Application of statistics in various aspects.

Arjuna Subject : Matematika - Matematika (Lain-Lain)

Articles 15 Documents

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Search results for , issue "Vol 4, No 3 (2019): Journal Of Mathematics UNP" : 15 Documents clear

Pemodelan Indeks Harga Saham pada Jakarta Islamic Index Menggunakan Generalisasi Proses Wiener ike mairita sari; media rosha
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract–Investment is a commitment to a number of funds or other resources carried out at this time with the aim of obtaining future profits. There are two types of investment, namely investment in real assets and investing in financial assets. Shares are instruments in the capital market that are often used by investors. Stock prices that change from time to time are very influential for shareholders. The purpose of this research is to form a stock price movement formula using the Wiener process method. The steps taken in this study are to form a model and make predictions. The results of this study obtained a mathematical model of stock price movements as well as stock price predictions for the 26 future periods. The results show that the highest and lowest share prices each occur on November 19, 2018 and November 16, 2018, with a prediction error value of 5,26581%.Keywords–Stock Price, Wiener Process, Jakarta Islamic Index.

Penerapan Hukmum Weibull Pada Meitode Neiw Jersey Dalam Penenituan Cadangan Premi Asuransi Dwilguna Status Joilnt Life rahma widia; muhammad subhan
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract— Life insurance company often find difficulties in decent money payment as according to agreement of claim. So, it is very important for the company to prepare everything to deal with this. The way is to allocate premium reserves using the New Jersey method. The calculation of endowment life insurance reserve by determining beforehand annuity, single premium, and annual premium using Weibull law. Based on the result of premium reserve calculation, the premium reserve value obtained at the end of the first year until the following year has increased. Keywords—Endowment Life Insurance, Premium Reserve, New Jersey Method, Weibull Law.

Matriks Peluang Transisi Fuzzy Time Series Markov Chain untuk Peramalan Kurs Riyal dengan Rupiah iin aini fitri; dony permana
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract –Currency rates are one of important indicators in a contry’s ecomony. The value of a country’s currency always fluctuation in value against another country’s currency at any time. Data that used in this research are currency rates data between Riyal and Rupiah. It got from the official website of Bank Indonesia This research goal is to predict the currency rate between Riyal and Rupiah in the future with Markov Chain Fuzzy Time Series method. The result of this research based on kurs data processing in the form of transition opportunities between state are the exchange rate on the first day there is an interval 1, then the probability of the next day the exchange rate is in the interval 1 is 0.8000 and the probability of the next day the exchange rate is in the interval 2 is 0.2000, while being at intervals 3,4,5,6,7,8 is 0, and so onKeywords: Currency Rate, Forecasting, Fuzzy Time Series Markov Chain Method

Optimasi Hasil Produksi Konveksi dan Bordir Komputer pada CV. Jonifer Embroidery Menggunakan Metode Branch and Bound suci wulandari; muhammad subhan
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract — Every company generally has various problems in achieving business objectives. CV. Jonifer Embroidery has the limited machine resources and employee to achieve optimal profits. The purpose of this study is to form the model and the results of production on CV.Jonifer Embroidery using Branch and Bound method. Branch and Bound method is a method for solving linear optimization problems to obtain integer variables. On CV. Jonifer Embroidery optimal production obtained are 152 pieces of long-sleeved shirt, 192 pieces of short shirt, 213 shirts, 165 pieces of collared shirts, 92 jackets and 148 pieces of salempang with optimal profits of Rp.22.295.400. Keywords — Branch and Bound, Linear Programming, Optimization, Production.

Model Matematika Tendangan Pisang Sepak Pojok pada Olahraga Sepakbola tomy aprinaldi; media rosha
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract — Football is the most interest sport by the public. The problem in football is a want to many scores. Scoring on football can be from open play and set play. In this research, the authors chose to conduct a scoring research through the set play from a football corner with a banana kick technique. The purpose of this research are: Forming a mathematical modeling banana kick of corner on football, analyzing the model, and interpreting model analysis results. The banana kick math model of the football corner is a regular differential equation-shaped system. The solution of this model to use a numerical solution with the fourth order Runge-Kutta method. Then, done simulation by using matlab. Simulated results show that, with an initial velocity 29,5 m/s the ball will be goal, but with initial velocity 23 m/s and 35 m/s the ball will not goal. Keywords — Mathematical Modeling, Banana Kick, Corner Kick.

Penerapan Metode Dekomposisi Sumudu untuk Menyelesaikan Persamaan Diferensial Biasa Orde Tiga Non Linear rizky hamdanih; riry sriningsih
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract– This research discusses about the third order non linear ordinary differential equations. To solve the third order non linear ordinary differential equation we can using the Sumudu decomposition method.The Sumudu decomposition method is a combination of the Sumudu transform and the decomposition method which involving Adomian polynomial. This study aims to determine the completion steps and solutions has obtained from the application of the Sumudu decomposition method in to the third order non linear ordinary differential equations. The final solution obtained from the Sumudu decomposition method is a series solution.Keywords– Ordinary Differential Equations (ODE), Third Order Non Linear ODE, Sumudu.

Faktor-Faktor yang Mempengaruhi Meningkatnya Kadar Gula Darah Pasien di Klinik Fanisa Kota Pariaman dengan Menggunakan Analisis Faktor farah khamsatul hasanah; Helma Helma
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract—Diabetes mellitus type 2 is a type of diabetes mellitus that is commonly found. Diabetes mellitus type 2 is a threat to human health in indonesia and the world, one of them is Pariaman city, specially in Fanisa Clinic. People with diabetes mellitus in Fanisa Clinic have increased from to year. The purpose of this research is to find out the factors influence th increasing of diabetics sugar blood Fanisa Clinic in Pariaman city. In this research used primary data, where there were 70 questioners given to the diabetics mellitus type 2 in Fanisa Clinic. The data having been obtained were analyzed by using factor analysis. The result of this research from 6 variables as age (x1), body mass index (x2), food supply (x3), medication compliance (x4), physic activity (x5) and, stress (x6), 5 variable obtained an reduced be chance two factors. The first factor influence by age variable and physic activity, meanwhile second factor influence by body mass index ,food supply and medication compliance. Keywords—Diabetes Mellitus, Blood Sugar Level , Factor Analisys.

Optimalisasi Biaya dan Waktu Pelaksanaan Proyek Pembangunan dengan Metode PERT-CPM sari maryani; dewi murni
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract— Project is a combination of several resources such as capital / costs, human, material and equipment in a temporary organization that aims to achieve certain goals.Estimating the duration and improper costs at this step will affect the implementation of activities and the results obtained. This researchpurpose to optimize the duration and cost of implementing the PLUT-KUMKM development project in Sumatra Barat with PERT-CPM method then followed by crashing. This research uses data on project activities, the sequence and cost of each activity. The results of this research can optimize the project implementation time with almost the same cost, from 21 weeks become 18 weeks. It means thatthe project implementation time can be accelerated by 14,3 % of the initial duration. With project implementation cost Rp.1.724.873.973,93 to Rp.1,787,703,844.13.Keywords—Project, PERT-CPM, crashing

Peramalan Jumlah Pengunjung Objek Wisata Waterboom Kota Sawahlunto Tahun 2019 Menggunakan Metode SARIMA ulfah hanum; dewi murni
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract–The visitors of tourist attraction will change and tend to be inconsistent over the tim, one of them is Waterboom which is located in Sawahlunto. This tourist object lacks of public facilities when it shows the increasing number of the visitors. Therefore, it is needed to make a prediction as the base in decision making. This research to make a model ARIMA and to get the prediction’s result of the total number of the Waterboom’s visitors in 2019. The data used are the number of the Waterboom’s visitors from January, 2014 up to December, 2018. Data analysis using the Seasonal Autoregressive Integrated Moving Average (SARIMA). This method consists of identification model, falsification stage and parameter testing, diagnostic stage, and forecasting stage. The analysis’s result in this study gets the best model for predicting data of the total number of the visitors of Waterboom in Sawahlunto that is ARIMA(1,1,1)(0,1,0)12, and this model is used to make a prediction in the next 12 periods.Keywords–The Number of visitors, SARIMA’s Model, Forecasting

Faktor-Faktor yang Menyebabkan Penyakit Gastritis pada Pasien di Puskesmas Tanjung Beringin Kabupaten Pesisir Selatan dengan Menggunakan Analisis Faktor setia ningsih m; dewi murni
Journal of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract–Gastritis or commonly referred as magh/ulcer is an inflammation that could result in swelling mucosa of ulcer and dyspepsia. Gastritis is one of the top ten diseases in Tanjung Beringin Health Center, Pesisir Selatan District and has an increase in the number of gastritris patients every year start from 2016 to 2018. This research was conducted with the purpose of knowing the cause of gastritis patients at the Tanjung Beringin Health Center, Pesisir Selatan District. In this research used primary data with shared some questionnaires to 88 people who suffer of gastritis in the Tanjung Beringin Health Center, Pesisir Selatan District. One of the statistical analyzes used in this research is factor analysis. Based on research result there two factors that being cause gastritis disease in patients at the Tanjung Beringin Health Center, Pesisir Selatan District 1) dietary habit, drinking caffeine/coffee habits and smoking 2) Age, drug habits and stress.Keywords–Gastritis, Dietary Habit, Factor Analysis.

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Home Page

OAI Link

Editorial Team

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Reviewer

Google Scholar

Contact Name
Defri Ahmad

Contact Email
defri_math@fmipa.unp.ac.id

Phone
+6281374333545

Journal Mail Official
defri_math@fmipa.unp.ac.id

Editorial Address
Jl. Prof. dr. Hamka Air Tawar Barat Padang

Location
Kota padang,

Sumatera barat

INDONESIA

Abstract

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Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Defri Ahmad

Contact Email defri_math@fmipa.unp.ac.id

Phone +6281374333545

Journal Mail Official defri_math@fmipa.unp.ac.id

Editorial Address Jl. Prof. dr. Hamka Air Tawar Barat Padang

Location Kota padang, Sumatera barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Defri Ahmad

Contact Email
defri_math@fmipa.unp.ac.id

Phone
+6281374333545

Journal Mail Official
defri_math@fmipa.unp.ac.id

Editorial Address
Jl. Prof. dr. Hamka Air Tawar Barat Padang

Location
Kota padang,

Sumatera barat

INDONESIA