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 13 Documents

1 2

Search results for , issue "Vol 4, No 2 (2019): Journal Of Mathematics UNP" : 13 Documents clear

Peramalan Produksi Ikan Laut di Kabupaten Pesisir Selatan Menggunakan Metode Pemulusan Eksponensial Tripel Tipe Brown Rimpi Oktaria; Dewi Murni; Helma Helma
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – Indonesia is a maritime country that has a lot of potential wealth of the sea, one of them is fish production. In West Sumatra, Pesisir Selatan is one of the Region that have a lot of fish production. It is beneficial for the local government to increase the GDP. Therefore, Pesisir Selatan marine fish production for the next few years needs to be foreseen for the government to make planning and appropriate action so the local revenue and foreign exchange could be improved. The purpose of this research was to obtain a forecasting model and predict fish production of Pesisir Selatan in 2015 until 2019. The forecasting method used is triple exponential smoothing method of Brown type. Based on the research results, it is estimated the Pesisir Selatan fish production for 2015 to 2019 has increased.Keywords – Fish Production, Forecasting, Tripel Exponential Smoothing, Brown Type

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

Peramalan Jumlah Konsumsi Energi Listrik di PT PLN (Persero) Rayon Bukittinggi Menggunakan Metode Arima Ginna Melinda; Minora Longgom Nasution; Helma Helma
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstrak –As a provider of electricity revenues of PLN Rayon Bukittinggi can decline. This is due to an imbalance between electric energy produced by the requested consumer. To increase the income of PLN Rayon Bukittinggi by predicting the amount of electrical energy needs far before the electrical energy used by consumers. One method of divination used i.e methods ARIMA. Formulation of the problem in this research is "how forecasting the amount of electrical energy consumption for PT PLN (Persero) Rayon Bukittinggi from June 2016until May 2017 using ARIMA". The results obtained in this study was getting models ARIMA (1,1,1)(0,1,1)12 as a suitable model, with a form ofmodelYt =Yt-1 -0,4629Yt-1 +0,4629Yt-2 +Yt-12 -Yt-13 +0,4629Yt-13 -0,4629Yt-14 + et - 0,9263et-1 - 0,7499 et-12 +0,6946 et-13.Keywords– Bukittinggi,Electric, Forecasting, ARIMA

Pengelompokkan Sembilan Kabupaten/Kota di Provinsi Sumatera Barat Berdasarkan Tingkat Kriminalitas dengan Menggunakan Analisis Gerombol Chairina Wirdiastuti; Helma Helma
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract Crime is an act that violates the law. Sumatra Barat Province have a high criminal. Criminals can make big problem for criminal victims, such as death, disability, material losses and others. The increase of crime is caused by several problem such as economic, social, conflict and etc. Crime is an element that explains the quality of sociaty and the law of a region. For that, it is necessary to know the groups of regencies/cities in the Province of Sumatera Barat based on crime rates so that the government can evaluate crime and improve some policies towards a region that has high crime. Data was obtained from the Central Agency on Statistics which showed the number of cases that occurred in regencies/cities in Sumatra Barat Province. Using cluster analysis with hirarchical method, it was concluded that regencies/cities in Sumatra Barat province were divided into three groups where group one consist of Solok Regency, group two consist of Tanah Datar Regency, Padang Pariaman Regency, Lima Puluh Kota Regency, Solok Selatan Regency, Dharmasraya Regency, Pariaman City, and Sawahlunto City and group three consists of Bukittingi City.KeywordsCrime, Cluster Analysis, Hierarchical Method

Karakteristik Pemerataan Pendidikan Kabupaten/Kota di Provinsi Sumatera Barat dengan Aanalisis Biplot Elza Vinora; Irwan Irwan; Yenni Kurniawati
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – Distribution of education in Sumatera Barat has become one of the priotities in the development of human resources. But until now, education in Sumatera Barat is still not evenly distributed. This can be see from the low of Participation Rough figures in certain areas as well as uneven distribution of theachers and educational fasilities. The purpose of this research is to provide information to local authorities about the state of education in local region to produce an appropriate policy regarding development of educational infrastructure and teachers distribution. Biplot is a graphic technique that presents together information about the object of observation and variabels in one plot. In this research, the three biplots is for elementary school education, junior high schools and high schools. Based biplot display, educational equity District / City in West Sumatra for all levels of education has not been evenly distributed.

Faktor–Faktor yang Mempengaruhi Perilaku Konsumen Memilih Mobil Bekas Merk Toyota Menggunakan Analisis Faktor Cindy Febrianita; Minora Longgom; Nonong Amalita
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract –There are four factors that influence someone or consumer to choose a product: culture factor, social factor, individual factor, and psychology factor. Many factors that influence someone to choose and its have correlation one with another, so we can processed the data using factor analysis. The results of this research indicate that the factors that affect consument choose to buy secound car brand Toyota there are some factors, the factor is recommendation to choose the product, life style, perception to choose the product, motivation to choose the product, parent existence, and job. Keywords: factors of consumer behavior, secound car brand Toyota, factor analysis

Metode Tipe Newton Bebas Turunan untuk Menentukan Akar Persamaan Tak Linier Engki Mai Putra; Muhammad Subhan; Yusmet Rizal
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract –Newton Method and Potra-Ptak Method are an iterative method which is used for solving nonlinear equation. Both of those method still have low order. Newton Method has second order convergence and Potra-Ptak Method has third order convergence. It make those method slow in getting roots approximation. Therefore, researcher modify both of those method use Taylor Series to increase the order of convergence, so we obtain Newton Type Derivative Free Method. So that, the purpose of this research is finding the roots of nonlinear equations using Derivative Free Newton Type Method, making the algorithm and determining the order of convergence. This research is theoretical research by reviewing relevant theories for solving nonlinear equation. The results of the research are Derivative Free Newton Type Method, algorithm of Derivative Free Newton Type Method, and this method has fifth order convergence. Keywords – Potra and Ptak Method, Taylor series, Derivative Free, Order of Convergence

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

Peramalan Penerimaan Pajak Negara Indonesia Tahun 2019 Menggunakan Metode Pemulusan Eksponensial Ganda Tipe Brown Yatri Asri; Dony Permana
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – Taxes are potential source of funds from the people and are used to build infrastructure and advance the economy of a country. The Calculation of estimated tax revenue targets that do not exactly have an effect on the various planned program activities. This research used the data of Indonesia tax revenue that obtained from Central Agency on Statistics Republic of Indonesia. This research aims to predict Indonesian tax revenue in 2019 using double exponential smoothing type Brown. The result of data processing obtained the forecast value of Indonesia tax revenue in 2019 using double exponential smoothing type Brown is IDR 1,734,847 billion. Keywords: Tax, Forecasting, Exponential Smoothing Type Brown Method

Faktor-Faktor yang Mempengaruhi Angka Kematian Akibat Kecelakaan Lalu Lintas di Sumatera Barat Menggunakan Analisis Jalur Hadiyanti Riskha; Arnellis Arnellis; Yenni Kurniawati
Journal of Mathematics UNP Vol 4, No 2 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – Traffic accidents are a problem that needs serious attention given the enormous losses incurred. West Sumatra is one of the provinces in Indonesia which has a fairly high accident rate. The problems of this study are the factors that influence significantly the mortality rate from traffic accidents in West Sumatra as well as how big the influence of these factors on the level of fatalities in West Sumatra. Data taken from the 2009-2012 in the Central Bureau of Statistics and West Sumatra police data. This research method using path analysis, a method that can analyze the factors that directly and indirectly to the death rate from traffic accidents. Factors that influence the mortality rate due to accidents directly is the number of accidents, while the factors that affect poverty indirectly the number of violations and the roads are damaged.Keywords – path analysis, accident, factors that affect accident.

Page 1 of 2 | Total Record : 13

1 2

Filter by Year

2019 2019

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