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# Browsing Mathematics by Title

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• (Elfitra, 2022-05)
The Indonesian government made a policy to reduce the spread of the coronavirus by restricting entry/exit to Indonesian territory. As a result, there is a decrease in the number of foreign tourist visits to Indonesia. ...
• (2017-01-12)
This article discusses the stability of mathematical model for dengue fever transmission. The model uses a system of differential equation with Susceptible, Infected, Recovered (SIR) with two compartments. In this model, ...
• (Elfitra, 2022-04)
The Covid-19 pandemic has an impact on the level of people's welfare in regional segmentation. Graphical and clustering can be done to determine the level of welfare of the people in Indonesia during the pandemic so that ...
• (Elfitra, 2022-12)
In the era of advanced and rapidly developing industries, drinking water companies have caused drinking water companies to improve the quality of their products, such as product packaging. Damage or defects on water ...
• (2016-04-27)
This article discusses the forecasting method that is used to predict the value of the future. This forecasting uses a single exponential smoothing method which has one smoothing parameter that satis es a value between ...
• (2021-01)
Average length of schooling, life expectancy, length of schooling expectancy and middle age enrollment rates are variables that contribute to the percentage of poverty. The data used are data from BPS Riau Province 2015 ...
• (2021-02)
The welfare of the elderly in Indonesia is ranked 74 out of 96 countries studied with an index score of 36.6. This index can be said that the welfare of the elderly in Indonesia is still very lacking, so the government ...
• (Elfitra, 2022-11)
Spatial regression analysis is a statistical method that is useful for analyzing spatial data. Spatial analysis assumes the presence of spatial dependencies. One way to find out if there is a spatial dependency is to do ...
• (2021-02)
The poverty rate in Riau Province in 2014 reached 8.42%. This figure is still relatively high. Economic growth, total population, district / city minimum wages, and the open unemployment rate are considered to have ...
• (2020-08)
This paper discusses the method of sensitivity analysis with changes in objective functions and right hand side of a linear program. The sensitivity analysis method is used to determine the limit of change in the objective ...
• (2020-10)
This article discusses how to apply sensitivity analysis to the triangular fuzzy number linear programming. Sensitivity analysis is used to determine the changes in the triangular fuzzy number on the coefficient of the ...
• (2020-10)
This article discusses the sensitivity analysis of transportation problems in triangular fuzzy numbers. The optimal solution of the transportation problem is obtained after converting the triangular fuzzy number in the ...
• (wahyu sari yeni, 2019-07-22)
This article discusses the analysis on the measurement of performance in a queueing system of customers by queueing theory and Monte Carlo simulation. The M=G=3=FIFO=1=1 queuing model is used to determine the performance ...
• (wahyu sari yeni, 2019-07-22)
This article discusses the analysis of prey-predator system with a modified non-homogeneous transmission function . This model uses the systems of differential equations of one predator and two preys model. The observed ...
• (Elfitra, 2022-02)
Geographically Weighted Logistic Regression (GWLR) is a method of combining Geographically Weighted Regression (GWR) with logistic regression which is applied to spatial data. The purpose of this research to determine ...
• (Elfitra, 2022-03)
Geographically Weighted Logistic Regression (GWLR) is a method of combining Geographically Weighted Regression (GWR) with logistic regression which is applied to spatial data. The purpose of this research to determine ...
• (Elfitra, 2021-12)
This article discusses about the stability analysis and numerical simulation of SEIR model for pandemic COVID-19 spread in Indonesia. In this model there are two equilibrium points, free disease equilibrium point and ...
• (2020-10)
This article discusses the stability of the predator-prey model using the Holling-II and threshold harvesting functions against predator. Three of five equilibrium points obtained are stable as seen from the eigenvalues ...
• (Elfitra, 2022-12)
The rate of return is one of the important factors for investors in making decisions when they want to invest. The amount of return obtained can determine the level of price fluctuations over a certain period or can be ...
• (2017-01-12)
This article discusses the analysis of the scheduling time housing construction projects using Monte Carlo simulation and PERT methods. Both of these methods use a network to facilitate the scheduling of the project. ...