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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 313 Documents

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Faktor-Faktor Yang Mempengaruhi Kunjungan Ibu ke Posyandu Nagari Kayu Tanam Kabupaten Padang Pariaman Menggunakan Analisis Faktor Putri Anisah; Helma Helma
Journal of Mathematics UNP Vol 5, No 4 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract — Posyandu is a health service provided by the government for the community. Of the many mothers who have babies or toddlers, and pregnant women are of the opinion that the visit to the posyandu has no effect on their children. This study aims to determine the factors that influence the mother's visit to Posyandu Nagari Kayu Tanam, Padang Pariaman. This study aims to determine the factors that influence the mother's visit to the Posyandu Nagari Kayu Tanam, Padang Pariaman. This type of research is applied research using primary data obtained from the results of filling out the questionnaire. The population in this study were all mothers who have babies or toddlers and 133 pregnant women in Nagari Kayu Tanam, Padang Pariaman. The sampling technique is total sampling. There are two factors that influence the mother's visit to the Posyandu Nagari Kayu Tanam, namely, external factors consisting of distance from the posyandu, family support, and the role of cadres. Internal factors consist of mother's attitude and posyandu facilities.Keywords — posyandu, factor analysis, total sampling.

Pengukuran Efisiensi Komoditi Industri Kerajinan Kabupaten Agam Menggunakan Metode Data Envelopment Analysis (DEA) Nurainun Pulungan; Arnellis Arnellis; Riry Sriningsih
Journal of Mathematics UNP Vol 4, No 1 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – Small and medium industries of Agam regency consist of five groups where one of them is craft industry that has a number of business units in Agam regency. To get more profit, measurement of efficiency needs to be done to improve productivity of craft industry. Method to measure level of efficiency is Data Envelopment Analysis (DEA) method. DEA method is linear programming model based on the measurement of efficiency a Decision-Making Unit (DMU) and uses a lot of inputs and outputs. The units will be measured those efficiency are commodities of craft industries with the production capacity of quantity unit. The measurement of efficiency commodities generates efficient and inefficiency DMU by using model of DEA. The level efficiency of inefficient DMU can be improved by utilizing the value of slack variables. After target calculation for improvements inefficient DMU and measurements of efficiency is again so that value of efficiency increases.Keywords – Efficiency, Data Envelopment Analysis, Inefficiency, Slack, Target.

Faktor-Faktor Yang Mempengaruhi Konsumen dalam Memilih Sepeda Motor dengan Menggunakan Analisis Faktor (Studi Kasus Mahasiswa Matematika FMIPA UNP) Resi Arsiva; Arnellis Arnellis
Journal of Mathematics UNP Vol 7, No 1 (2022): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

The poor public transportation makes people choose motorbikes as the main transportation. The purpose of this research is to know what factors can influence the consumers in the course of choosing motorbike within study cases on department mathematic of UNP students.The questionnaire distributed used total sampling technic. There are four factors that influence consumers in the course of choosing motorbike. The first factor is current development, family members, lifestyle, satisfaction to product, learn from experience, consumer attitude to product, and experience. The second factor is parents profession, economic situation, and parents income. The third factor is friend and elder people existence. the fourth factor is bad and good viewpoint to product and parents experience.

Regresi Probit dan Penerapannya pada Penentuan Faktor-faktor yang Mempengaruhi Kelulusan Mahasiswa pada Suatu Mata Kuliah (Suatu Studi Kasus pada Perkuliahan Analisis Real di Jurusan Matematika FMIPA UNP Selama Pembelajaran Daring) Sri Jelita Putri; Helma Helma
Journal of Mathematics UNP Vol 6, No 2 (2021): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract — Real Analysis is a course that emphasizes verification and skills in analyzing statements, so it becomes difficult for most students. With the online lecture system, the success of learning in this course will also has an impact on students. The purpose of this study was to determine the shape of the model, the factors that influence the student graduation, and the factors that have the greatest chance of graduating a student of the Mathematics Department of Mathematics and Natural Sciences in UNP in studying the Real Analysis course during online lecture using probit regression analysis. The data analysis used was the estimation of probit regression parameters, the significance test of the model using the G test, the significance test of the parameters using the Wald test, selecting the best model, interpreting the model and calculating the probability of passing students from the best model. Based on the research of the independent variables that affect the graduation of Mathematics Department students of Mathematics and Natural Sciences in UNP in studying Real Analysis courses during the implementation of online lecture is the background factor. Keywords — Probit Regression Analysis, Real Analysis, Student Graduation

MODEL MATEMATIKA PERILAKU MANUSIA SAAT TERJADINYA BENCANA Hana Fadhila; Muhammad Subhan
Journal of Mathematics UNP Vol 5, No 1 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract — Catastrophe are events that cannot be predicted accurately and have a devastating effect both psychologically and non-psychologically on humans, if there is not enough preparation. Anticipation is a crisis point for the population and operational services in charge during a crisis situation, because it helps ensure the safety of the population and keep the situation under control. This research is related to modelling temporal dynamics of human behaviour during catastrophic event. Several complex models with different scales can be found in order to model crowd dynamics. Thus, in this research included mathematicians, geographers and computer scientist taking into account the human reaction in situation of disaster psychologically and learn their propagation mode. By using SIR based model, which is three types of collective behavior occur during the catastrophe: reflex, panic and controlled. The interaction among these classes of population by emotional contagion and imitation, some simulations will show the relevance of the model. Keywords — Mathematical Model, Human Behavior, Catastrophe, Panic.

Penyelesaian Sistem Persamaan Linear pada Aljabar Max-Plus Cindi Meidisia; Yusmet Rizal; Helma Helma
Journal of Mathematics UNP Vol 2, No 1 (2014): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

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.

Pemodelan Matematika Tendangan Penalti Pada Olahraga Futsal Hagi Ivano Gusmaldy; Yusmet Rizal
Journal of Mathematics UNP Vol 5, No 4 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract— Penalty is the best chance to score in a set play situation. The kicker is almost unmatched by anyone except the enemy goalkeeper who is 6 meters away from the kicker. The problem that occurs with this penalty kick is that most players are more concerned with the power of the shot compared to the direction of the ball to a point that is difficult to reach by the goalkeeper, so that many kickers fail to take kicking shots in this futsal sport. The purpose of this study is to determine a mathematical model and interpret the model obtained. This mathematical model is obtained with a range of angles defined using right triangles and trigonometric ratios. Also, the sides of the triangle are calculated using the Pythagorean theorem. Velocity is calculated using a simple projectile motion equation. The numerical method is used to find the velocity range for each corner. The result of the research is that the initial velocity of the ball is 78, 19 km / h, while the angles for each are θ = 38,14o or θ = 51,86 o.Keyword —mathematical model, penalty kick, futsal, angel, velocity.

Model Eko-epidemiologi dengan Waktu Tunda, Mangsa Panen dan Penambahan Secara Konstan Mangsa Rentan Meiky Riani; Muhammad Subhan
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – In this article discussed eco-epidemiological with time delay, harvesting prey and addition constally suspectible prey. Eco-epidemiological is study the spread of infectious diseases in population in the interaction in an environment. Eco-epidemiological will be analyzed by finding the stability of fixed point. The model consist of tree differential equations. In this model the population is diveded into three parts suspectible prey, infectious prey and predator. The model have four fixed points. Those are extinction , axial , infected prey extinction or disease free and the coexistence between prey and predator .Keywords – Eco-epidemiological , Predator-prey,Time Delay,Fixed Point

Analisis Perbandingan Portofolio Optimal Single Index Model dan Metode CATM Menggunakan Indeks Pengukur Sharpe, Treynor, dan Jensen (Studi Kasus Saham Jakarta Islamic Index) Pada Masa Pandemi Covid 19 Yuyun Septia Rodita; Media Rosha
Journal of Mathematics UNP Vol 7, No 2 (2022): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Investment is the investment of funds to earn profits in the future. The higher the expected rate of return, the higher the risk that will be faced. To minimize the level of risk and maximize the rate of return, an optimal portfolio is formed. The models that can be used to form an optimal portfolio are the Single Index Model and the Capital Asset Pricing Model (CAPM). This study aims to analyze the comparison of the optimal portfolio of Jakarta Islamic Index shares during the Covid-19 pandemic with the Single Index Model and CAPM and to measure the optimal portfolio performance formed by measuring indexes, namely Sharpe, Treynor, and Jensen. Based on the analysis of the optimal portfolio performance measurement shows that the optimal portfolio formed by the CAPM method has a better performance than the Single Index Model.

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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

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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