Garuda - Garba Rujukan Digital

Article Per Year (5 Year)

All

Journal of Mathematics UNP

mat
Website

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 404 Documents

13 14 15 16 17

Faktor yang Mempengaruhi Kepuasan Konsumen Rumah Makan Ampera Ramah di Painan dengan Menggunakan Analisis Faktor Gustrio Zampurnama; Helma Helma
Journal of Mathematics UNP Vol 4, No 4 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract– Consumer satisfaction is one of the important things that must be considered in the business sector. Indicators that are though to influence consumer satisfaction are product quality, service quality, price, and emotional sense. One of the statistical analysis that commonly used in analyzing such factors is factor analysis. The data used in this research is primary data obtained from interviews by using questionnaire, where the population is comprised of all Ampera Ramah Restaurants consumers. The samples in this research are about 100 people obtained using accidental sampling methode. Based on the results of this research there are six factors that need to be considered to increase consumer satisfaction i.e 1) taste, menu variation, presentation, and cleanliness, 2) empathy, aesthetics, expression, and innate self, 3) responsiveness and assurance, 4) fairness of prices and affordability, 5) food freshness, shrewdness, and price comparison, and 6) portions and physical evidence. Keywords–Consumer Satisfaction, Restaurants, Factor Analysis.

Model Matematika SEIRS Penyebaran Penyakit Pneumonia pada Balita dengan Pengaruh Vaksinasi Aly Muhammad Zhafran; Arnellis Arnellis
Journal of Mathematics UNP Vol 7, No 3 (2022): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

This study aims to establish a mathematical model of the distribution of pneumonia in children under five using the SEIRS (Susceptible-Exposed-Infected-Recovered-Susceptible) model, model analysis, and comparison of minimal vaccinations. This model consists of several classes, namely susceptible, infected but not yet infectious, infected, and cured. Analysis of the stability of the model is obtained by finding a disease-free fixed point whose analysis results are asymptotically stable and an endemic fixed point whose analysis results are asymptotically stable if the value of A>(Cαβmσ-Cαβσ)/(BCm-Bmρ) and A>βγρ/BC .

Faktor-Faktor Risiko yang Mempengaruhi Kanker Paru-Paru dengan Menggunakan Analisis Regresi Logistik Juwita Juwita; Nonong Amalita; Meira Parma Dewi
Journal of Mathematics UNP Vol 6, No 1 (2021): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – Lung cancer is a disease with characteristic presence of uncontrolled cell growth in the lung tissue. If not treated, the growth of these cells can spread beyond the lung. So if it is not taken seriously, will be ensured with lung cancer longer will increase. The factors that affect the risk of lung cancer are age, gender, cigarette consumption and lung disease history, family history, and type of work. To determine the factors that most influence the risk of lung cancer will be established a model which can help the application of a causal relationship between two or more variables by using logistic regression analysis. Which aims to determine the factors that influence and determine the chances of each of the factors that affect the risk of lung cancer. Based on theresults of the study, the factors that affect the risk of lung cancerat the Hospital Dr. M. Djamil Padang is age cigarette consumption and lung disease history. If a personolder than 40 years, smokers and have a history of lung disease, the chances that a person will suffer from lung cancer increases.Keywords–lung cancer, risk factor, logistic regression analysis

Penerapan Teori Antrian pada Pelayanan Teller Bank BNI Kantor Cabang Pembantu Air Tawar Windy Septia Putri; Defri Ahmad
Journal of Mathematics UNP Vol 5, No 1 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract– Queuing is one of the problems that is often faced by public services, as happened at the BNI Sub-Branch Office Air Tawar. It is due to the large number of customers who come to get services. This paper discusses the resolution of the problem faced by obtaining a queuing model that is applied to bank tellers. Data collection is carried out for 5 days (Monday to Friday, at 09.00 - 12.00 Western Indonesian Time) and is done through interviews and direct observations at the teller section of the BNI Sub-Branch Office Air Tawar. Based on the results of the analysis by measuring the performance of the queuing system, it is found that the model applied is .The arrival time of the customer is Poisson distribution and the time of service to the costumer is exponential distribution. The general discipline used is first in first out (FIFO). The basic queuing model is the Multiple Channel Queuing System.Keywords– Queue Theory, Multiple Channel Queuing System.

Model Matematika Pengaruh Pemberian Gadget Terhadap Anak Usia Dini Nofrita Ulfah; Media Rosha
Journal of Mathematics UNP Vol 5, No 3 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract — Gadgets are sophisticated technology that many people are interested in including early childhood. Parents who deliberately introduce and give gadgets to children without supervision make children addicted to their gadgets. This has led to an increase in cases of gadget addiction in early childhood. The purpose of this research is to form a mathematical model of the effect of giving gadgets to early childhood. This research is basic research. The theoretical method will be used to analyze the theories used in forming a mathematical model of the effect of gadgets on early childhood. Based on the analysis results obtained two fixed points, namely a fixed point free from gadget influence and a fixed point pendemik. The high level of influence of giving gadgets to early childhood causes the population of children to become increasingly addicted to gadgets. Keywords — gadgets, early childhood, gadget addiction.

Pengaruh Volume Terhadap Harga Saham pada Trading Activities PT. BCA Tahun 2017 dengan Menggunakan Metode Theil Arshie Nur Aisyah; Helma Helma
Journal of Mathematics UNP Vol 3, No 2 (2018): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract− The relationship between the volume and stock price is used as a reference by investors in buying and selling stock. But many of the novice investors don’t know the relationship between stock prices and volumes, resulting in errors in conducting stock transactions. Research was conducted to see the effect of volume on stock prices by using the theil method to match the regression line. This study produced a regression model. The slope coefficient of the regression model, 95% will be between 11.92799 to 24.91132 and the determination coefficient is 0.99530761 which indicates that 99.53% of the volume can explain stock prices while the rest is influenced by other variables not included in the model.

Model Matematika Penyebaran Penyakit Scabies pada Populasi Hewan dan Manusia Yani Sriyanti; Defri Ahmad
Journal of Mathematics UNP Vol 5, No 4 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract — Scabies is a contagious skin disease caused by an infestation of the Sarcoptes Scabie mite which can spread quickly. This disease is spread in tropical areas where the level of hygiene, sanitation, and socio-economy is low and attacks all groups regardless of sex and age. The purpose of this research is to form a mathematical model, then the model is analyzed and interpreted. Based on the asumi and parameter values, a mathematical model of the spread of scabies in animal and human populations can be formed. The model that has been formed will then be analyzed using simulation. From the analysis obtained two points of equilibrium, which disease free and disease endemic. The simulation results show that scabies disease will continue to exist in the population because the equilibrium point at the endemic disease is unstable.Keywords— endemic, mathematical model, scabies, basic reproduction number.

Pembentukan Portofolio Optimal Menggunakan Metode Optimasi Multiobjektif pada Saham di Bursa Efek Indonesia Doni Rahmat Septiano; Syafriandi Syafriand; Media Rosha
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract –Multi-objective optimization is a method of formation of the portfolio was conducted in a way to maximize the level of expected return and risk of the portfolio at the same time with different weighting coefficients k value that states how much risk was taken. The purpose of this research is to form the optimal portfolio based on the properties of the investor. This research was based on LQ-45 stocks case studies in the period trading from February-July 2015. The optimal portfolio for risk seeker investors is when with expected return at 0.18674% and the shares was invested only one stocks. At the risk indifference investors, the portfolio was formed when in which the invested shares were nine stocks. The expected return rate was 0.11463% to 0.17998%. As of risk-averse investors, a portfolio was formed when with invested stocks were ten stocks with expected return at 0.10837%. Keywords –return, expected return, risk, multi-objective optimization, portfolio

Pengendalian Mutu Alat Skir Katup Otomatis Menggunakan Peta Kendali dengan Metode Bootstrap Yuvani Oksarianti; Dina Fitria
Journal of Mathematics UNP Vol 7, No 3 (2022): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Compression leaks occur in valves caused by soot resulting from the combustion process of the combustion engine. To overcome valve leaks, it’s necessary to clean using an innovative tool called valve grinding automatic system. The purpose of this study was to determine the quality of this tool based on the control chart using the bootstrap method. Based on the research results, the control charts X ̅ dan R show that the cleaning process is in a controlled and stable state (in statistical control). The quality of the valve cleaning process using this tool is able of producing cleaning according to standard cleaning specifications.

Menentukan Luas Daerah Segitiga Spheris Mulyadi Mulyadi; Mirna Mirna; Riry Sriningsih
Journal of Mathematics UNP Vol 6, No 1 (2021): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract - Spherical Triangle is a triangle on surface of ball that formed by circles which cutting the ball. The circle that forms a Spherical Triangle are circles which cutting the ball in center. Area of Spherical Triangle is different from Euclid Triangle. This study look at how to find the Area of Spherical Triangle. The result obtained in this study is how to find the area of Spherical Triangle that must knows about dihedral angle or trihedral angle that forms spherical triangle.Keywords - spherical triangle, dihedral angle, trihedral angle.

Page 15 of 41 | Total Record : 404

13 14 15 16 17

Filter by Year

2014 2025

Filter By Issues

All Issue Vol 10, No 2 (2025): Journal Of Mathematics UNP Vol 10, No 1 (2025): Journal Of Mathematics UNP Vol 9, No 4 (2024): Journal Of Mathematics UNP Vol 9, No 3 (2024): Journal Of Mathematics UNP Vol 9, No 2 (2024): Journal Of Mathematics UNP Vol 9, No 1 (2024): Journal Of Mathematics UNP Vol 8, No 4 (2023): Journal Of Mathematics UNP Vol 8, No 3 (2023): Journal Of Mathematics UNP Vol 8, No 2 (2023): Journal Of Mathematics UNP Vol 8, No 1 (2023): Journal Of Mathematics UNP Vol 7, No 4 (2022): Journal Of Mathematics UNP Vol 7, No 3 (2022): Journal Of Mathematics UNP Vol 7, No 2 (2022): Journal Of Mathematics UNP Vol 7, No 1 (2022): Journal Of Mathematics UNP Vol 6, No 4 (2021): Journal Of Mathematics UNP Vol 6, No 3 (2021): Journal Of Mathematics UNP Vol 6, No 2 (2021): Journal Of Mathematics UNP Vol 6, No 1 (2021): Journal Of Mathematics UNP Vol 5, No 4 (2020): Journal Of Mathematics UNP Vol 5, No 3 (2020): Journal Of Mathematics UNP Vol 5, No 2 (2020): Journal Of Mathematics UNP Vol 5, No 1 (2020): Journal Of Mathematics UNP Vol 4, No 4 (2019): Journal Of Mathematics UNP Vol 4, No 3 (2019): Journal Of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP Vol 4, No 1 (2019): Journal Of Mathematics UNP Vol 3, No 2 (2018): Journal Of Mathematics UNP Vol 3, No 1 (2018): Journal Of Mathematics UNP Vol 2, No 1 (2014): Journal Of Mathematics UNP More Issue

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

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