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Model Matematika Zakat dalam Pengurangan Kemiskinan Lani Widia Putri; muhammad subhan; Media Rosha
Journal of Mathematics UNP Vol 3, No 2 (2018): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (950.498 KB) | DOI: 10.24036/unpjomath.v3i2.4678

Abstract

Abstract –Poverty is condition where people have lack of income to fulfill basic living needs. The condition is cause by some reasons like less of natural resources, less of human resources, and less of financial. Zakah is a effort to poverty decrement. To determine the factors that should be improved that we use mathematical model. Mathematical model of zakah in form of nonlinear differential equation system. Based on analysis of factor model  than influence poverty decrement are zakah influence level, business success level, and interaction level. The simulation it looks interaction level is more large to reach stability than other factors, it means that more height the interaction level makes more optimum to poverty decrement. 
Modifikasi Cadangan Premi Prospektif pada Asuransi Jiwa Seumur Hidup Joint Life Menggunakan Metode New Jersey Zulfadri Zulfadri; Arnellis Arnellis; Muhammad Subhan
Journal of Mathematics UNP Vol 4, No 4 (2019): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.312 KB) | DOI: 10.24036/unpjomath.v4i4.7927

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Abstract – Basically the insurance company requires a reserve fund to pay compensation in the event of a claim. Not a few life insurance companies that incur losses beacuse can’t to pay compensation to participants of the insurance. These circumstances can be anticipated if the insurance company has the reserves that have been prepared and it accounted appropriately. One of the methods used to calculate the premium reserve is New Jersey. These method is derived from the formula of prospective reserves. The calculation of the value of reserves method using New Jersey begins by determining the cash value annuity, then calculate the net single premium, and annual net premium , proceed with the counting of net premium advanced and reserves end of the year-t. These method stated that value a reserve premium in the first year is zero, so that insurance companies can use the premium for the need insurance.Keywords – Premium Reserves, New Jersey Method, Prospective, Life Insurance, Joint Life
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (596.104 KB) | DOI: 10.24036/unpjomath.v4i3.7192

Abstract

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.
Metode Euler-Milstein untuk Solusi Numerik Persamaan Diferensial Stokhastik Ornstein-Uhlenbeck Taufik Iqbal; Muhammad Subhan
Journal of Mathematics UNP Vol 5, No 3 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (344.229 KB) | DOI: 10.24036/unpjomath.v5i3.10608

Abstract

Abstract —The Ornstein-Uhlenbeck.equation is a stochastic differential equation, this equation.is often used in the financial mathematical model. However, to find the solution the Ornstein-Uhlenbeck equation.is.difficult.to complete analytic so it can also be solved by looking for numerical solutions. To get a better numeric solution it is required a numeric. method by. looking at converged. The purpose of the study is to examine. the Euler-Milstein method formula for the solution of the Ornstein-Uhlenbeck equation, shows that numerical solution of Ornstein-Uhlenbeck equation that resulted by Euler-Milstein.method has strong convergence. to exact solutions and create an algorithm to find the solution of Ornstein-Uhlenbeck equation with the Euler-Milstein method. Keywords — stochastic.differential.Equations, ornstein-uhlenbeck equation, euler- milstein method 
Implementasi Metode TOPSIS Fuzzy MADM dalam Seleksi Penerimaan Bidikmisi Mei Dina Rahmi; Muhammad Subhan
Journal of Mathematics UNP Vol 3, No 1 (2018): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (301.354 KB) | DOI: 10.24036/unpjomath.v3i1.4663

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Abstract – There are so many candidates and criterias in the process of Bidikmisi scolarship selection, but the awardees are limited. Therefore, we need an accurate method to gain precise decision. This research used Technique for Oder Preference by Similarity to Ideal Solution (TOPSIS) Fuzzy Multi Additive Decision Making (FMADM) method to Bidikmisi scolarhip selection. Bidikmisi scolarship selection in this research there are five criterias were determined, they are: parents income, life cost, the status of the house ownership, the land area, and the building area. The rating of the criteria have been done subjectively and objectively. Subjectively, the rating is gain from experts opinion and objectively the rating is gain from the result of TOPSIS. The output are the participants preference value. Based on the result of these research, the preference value are more accurate therefore only a few candidates have the same value. So this research proves that the ranking process have been done more carefully.
Model Host-Vector Penyebaran Virus Zika Nadia Wulandari; Muhammad Subhan
Journal of Mathematics UNP Vol 5, No 3 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.209 KB) | DOI: 10.24036/unpjomath.v5i3.10599

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Abstract—  Zika is a disease caused by the bite of an infected Aedes mosquitoes, especially the Aedes aegypti mosquitoes. Besides being transmitted by mosquito bites, zika can also be transmitted by human sexual contact. The purpose is to determine the spread of zika virus through two populations and determine the paraeters that affect the distribution that are sensitive or affect the dynamic system. This research is a basic research, using descriptive methods. This method is done by analyzing theories related to the problem. Based on the results of the sensitivity analysis, it was found that the parameter affecting the basic reproductive value was the rate of mosquito bites and lifespan of vector. If the mosquito bite rate and the lifespan of the mosquito increase, then the basic reproductive value will also increase so that the zika virus will become epidemic. Keywords— Host-Vector  Model, Zika, Sexual Transmission, Vector Transmission.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (278.548 KB) | DOI: 10.24036/unpjomath.v4i2.6307

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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 
Model Matematika Persediaan Barang karena Adanya Kerusakan dengan Tingkat Permintaan Eksponensial dan Partial Backlogging Iswarnedi Iswarnedi; Muhammad Subhan; Riry Sriningsih
Journal of Mathematics UNP Vol 6, No 2 (2021): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (476.308 KB) | DOI: 10.24036/unpjomath.v6i2.11555

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Abstract – Inventory control by companies is needed to ensure of customers’s demand. Optimal order quantity is a model that uses for counting the optimal total of an item, which could be bought or produced to minimize the costs, both in terms of supplies and processing order purchase. The purpose of this research is to form the inventory model for deteriorating item with exponential demand rate. The method is descriptive method by analyzing the theories which are relevant to the problem. Finally, we get the model form and numerical example that is given to illustrate the model.Keywords– mathematical model, inventory, exponensialdemandrate,deterioration,partialbacklogging
Model Matematika Penanggulangan Pencemaran Udara Eri Ranyusa Putri; muhammad subhan
Journal of Mathematics UNP Vol 3, No 2 (2018): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1037.939 KB) | DOI: 10.24036/unpjomath.v3i2.4677

Abstract

Abstract-Air pollution is a change in the composition of substances in the air from normal conditions. An air is said to be polluted if a certain amount of substance that is in the air for a long period of time exceeds its safe limit. Substances that most influence the occurrence of air pollution are carbon monoxide produced by vehicles. The purpose of this research is to form a mathematical model, analyze mathematical models that have been obtained, and interpret the results of the analysis of the mathematical model. This research is a basic research, which starts from creating variables, parameters, and assumptions. Mathematical models for air pollution control are obtained by nonlinear differential equation systems. The results of the model analysis obtained a fixed point that is not stable, so that we can do air pollution prevention by the number of trees must be a lot of carbon dioxide produced from the process of hydroxyl oxidation and carbon monoxide produced by existing vehicles.
Faktor-Faktor yang Menyebabkan Obesitas Berisiko pada Mahasiswa Matematika FMIPA UNP Menggunakan Analisis Faktor Siska Novita Sari; Helma Helma; Muhammad Subhan
Journal of Mathematics UNP Vol 6, No 1 (2021): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (544.185 KB) | DOI: 10.24036/unpjomath.v6i1.11564

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Abstract - Obesity is a disorder characterized by the accumulation of fat tissue in the body excessively. Obesity can happen to anyone, including students. Many impacts of diseases that can attack is coronary heart disease, diabetes mellitus, hypertension and other dangerous diseases. Objectives for the review identify factors causing obesity. This research is done student of  studies program mathematics Faculty of Mathematics and Science (FMIPA) Department State University of Padang (UNP), data was collected through questionnaires deplopment with respondents as many 32 people were processed using factor analyze. From the analyze of the data can be obtained five new factors.Keywords - Factor analyze, Obesity, the impact of obesity diseaseAbstract-Obesity is a disorder characterized by the accumulation of fat tissue in the body excessively. Obesity can happen to anyone, including students. Many impacts of diseases that can attack is coronary heart disease, diabetes mellitus, hypertension and other dangerous diseases. Objectives for the review identify factors causing obesity. This research is done student of  studies program mathematics Faculty of Mathematics and Science (FMIPA) Department State University of Padang (UNP),data was collected through questionnaires deplopment with respondents as many 32 people were processed using factor analyze. From the analyze of the data can be obtained five new factors. Keywords- Factor analyze, Obesity, the impact of obesity disease