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All Journal Pelita Eksakta Journal of Mathematics UNP Rangkiang Mathematics Journal JNPM (Jurnal Nasional Pendidikan Matematika)

Muhammad Subhan

Universitas Negeri Padang

Author-ID : 2756558

Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Mathematics Physics Other

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E-learning for Managing Lesson in Pandemic Era in SMA 2 Lubuk Sikaping Muhammad Subhan; Dina Fitria; Yusmet Rizal; Heru Maulana; Defri Ahmad; Suherman Suherman; Saddam Al Aziz
Pelita Eksakta Vol 3 No 2 (2020): Pelita Eksakta Vol. 3 No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol3-iss2/145

School atmosphere in pandemic era mostly different with the normal one. An alternative to ensure learning process done by using online learning. But many teacher was not familiar with this type of learning approach. It is an extraneous because teacher never used it before. By workshop supported by devotee, teachers design an alternative. Some free software discuss during socialization, they are edmodo for moving offline class into virtual class, wonderful filmora for creating and editing video, quizzes and kahoot for quiz. The workshop is categorized success, based on teachers' respon which is collected using open questionnaire in every meetings.

MENENTUKAN FORMULASI ASURANSI JIWA DWIGUNA MENGGUNAKAN HUKUM HELIGMAN-POLLARD DENGAN KASUS MULTIPLE LIFE Wanari Intan Dwi Putri; Muhammad Subhan; Dewi Murni
Journal of Mathematics UNP Vol 3, No 1 (2018): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – One of the problems that can happen to the insurance company is the inability of the company to pay compensation to the insurance participants in the event of a claim. For that, it takes a formulation of premium calculation so that the premium value can be calculated properly. Calculation of net premium using Heligman-Pollard law. The calculation of premiums by using Heligman-Pollard law begins with creating mortalitaas tables, making the cash value of dual-purpose annuity insurance with dependents for n years, calculating net periodic premiums on dual life insurance with multiple life cases, calculating annual net premiums on dual-life insurance with multiple cases life. By using this Heligman-Pollard law, insurance premiums will be grouped into 3 age groups on the new mortality table.

Penerapan Metode Mamdani dalam Menentukan Tingkat Resiko Gizi Buruk Ibu Hamil di Puskesmas Pemancungan Dini Kamala Sari; muhammad subhan
Journal of Mathematics UNP Vol 3, No 2 (2018): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract –Assessment of nutritional status is very important during pregnancy, because it greatly affects the health of the mother and fetus. To reduce mistake in nutritional assessment and the lack of certainty to find out how much the level of risk of malnutrition in pregnant women, fuzzy logic can be used. This study uses the Mamdani method with the affirmation of the centroid method. There are three variables used in this study which is mid upper arm, hemoglobin and weight gain. The result of this study of eighteen pregnant women obtain ten at high risk, three at moderate risk, and five people at low risk.

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.

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

Metode Euler-Milstein untuk Solusi Numerik Persamaan Diferensial Stokhastik Ornstein-Uhlenbeck Taufik Iqbal; Muhammad Subhan
Journal of Mathematics UNP Vol 5, No 4 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract —The Ornstein-Uhlenbeck.equation is a stochastic differential equation, this equation.isoften 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

Optimasi Portofolio dengan Lexicographic Goal Programming pada Bursa Efek Indonesia Nilam Purnama Sari; Muhammad Subhan; Dewi Murni
Journal of Mathematics UNP Vol 6, No 1 (2021): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract – A portfolio is a collection of investment opportunity that aims to select a combination of efficient of shares owned, in the form of profit (return) is optimal in forming the optimal portfolio, there are three criteria that must be considered, maximizing the total funds that, maximizing expected return, minimizing risk market (systematic risk coefficients). One model that can solve this problem is lexicographic goal programming. research purposes is how to obtain a stock portfolio optimation with lexicographic goal programming and the proportion of the funds invested. The method used is descriptive method that analyzes the theories related to lexicographic goal programming. The result obtained is an optimum portfolio.Keywords – investment, portfolio, return, the coefficient of systematic risk, lexicographic goal programming

Penyelesaian Permasalahan Non Linear dengan Pendekatan Linearisasi Dua Fase Maharani Safitri; Muhammad Subhan
Journal of Mathematics UNP Vol 5, No 1 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract—A nonlinear optimization problems with complicated nonlinear objective functions with nonlinear constraints is difficult to complete analytic but can be solved numerically. Research is conducted to seek solution of non-linear with constrained or not problems using a two-phase linearization approach. The result of this research is the solution of non-linear problems of minimum or maximum occupancy of the smallest residue.Keywords—Linear Programming Problems, Nonlinear Programming Problems, Linearization Approach, Taylor Series, Maclaurin series.

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.

MODEL ECONOMIC ORDER QUANTITY (EOQ) DENGAN MEMENUHI BACKORDER DAN PERMINTAAN DENGAN PEMBAYARAN KREDIT 2 TINGKAT Bella Guivera Diandes; Muhammad Subhan
Journal of Mathematics UNP Vol 5, No 3 (2020): Journal Of Mathematics UNP
Publisher : UNIVERSITAS NEGERI PADANG

Abstract— Generally, payment is made after the buyer receives the goods from the seller. At this time the development of the business world in Indonesia is increasingly rapid and various innovations have emerged, such as sellers will offer a delay in payments to buyers to complete transactions. This also applies to buyers to apply trade credit to their customers as a tool to attract customer interest to increase demand. Thus this paper will discuss the effect of a two-tier trade credit, on the optimal order quantity of an economical retailer with permitted shortages of goods. And assume the buyer demand function increases over time. The purpose of this inventory model is to maximize profits. With this, we model it in mathematical form. We can see the effect of the parameters on the decision variable of fulfilling the backorder and two-level credit payments. Keywords—EOQ, Backorder, Two-level trade credit.

Co-Authors Anjely Aunaya Alfatihah Arnellis Arnellis Bella Guivera Diandes Bella Guivera Diandes Defri Ahmad Defri Ahmad Desi Triana Putri Dewi Murni Dina Fitria Dini Kamala Sari Engki Mai Putra Eri Ranyusa Putri Esty Wahyuni Hana Fadhila Helma Helma Ingrit Ridha Rahayu isra miati Iswarnedi Iswarnedi Khairunisa Khairunisa Laksono Trisnantoro Lani Widia Putri Latifah Hanum Maharani Safitri Maulana, Heru Maulani Meutia Rani Media Rosha Mei Dina Rahmi Meiky Riani Meira Parma Dewi Minora Longgom Nasution Nadia Wulandari Nadia Wulandari Nilam Purnama Sari Nurma Yenni Peni Erawati putri karimah rahma widia Riry Sriningsih rizqa hariq hazana Ronal Rifandi Saddam Al Aziz Sarah Hardiana SHELLA RIZKY AMALIA Siska Novita Sari Siti Aminah suci wulandari Suherman Suherman Tasya Salsabilla Harista Taufik Iqbal Taufik Iqbal Vhinasy Andari Wanari Intan Dwi Putri Wella Kurnia Yoga Aprila Yuco Alsbaldo Yulyanti Harisman Yusmet Rizal Yusmet Rizal Zulfadri Zulfadri

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