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Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam (JURRIMIPA)
Published by Pusat Riset dan Inovasi Nasional
ISSN : 28289382     EISSN : 28289390     DOI : https://doi.org/10.55606/jurrimipa.v1i1
Core Subject : Education,
Mathematics
Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam adalah jurnal yang ditujukan untuk publikasi artikel ilmiah yang diterbitkan oleh Pusat riset dan Inovasi Nasional, Universitas Sains dan Teknologi Komputer. Jurnal ini adalah jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam yang bersifat peer-review dan terbuka. Bidang kajian dalam jurnal ini termasuk sub rumpun Ilmu IPA, Ilmu Matematika, Ilmu Kebumian dan Angkasa. Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam menerima artikel dalam bahasa Inggris dan bahasa Indonesia dan diterbitkan 2 kali setahun: April dan Oktober.
Arjuna Subject : Matematika - Matematika (Lain-Lain)
Articles 200 Documents
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Pemetaan Cuaca Berdasarkan Penyebaran Awan Menggunakan Analisis Korespondensi Ni Komang Ayu Karisma Dewi; Ni Nyoman Swastika Sukma Suryani; Dewa Ayu Made Sri Wijayati Utami; Made Ayu Dwi Octavanny
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 2 (2025): Agustus: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i2.6276

Abstract

Weather and cloud cover are two fundamental atmospheric elements that are closely interconnected and play a vital role in understanding, classifying, and predicting atmospheric conditions. Accurate classification of weather conditions is essential not only for meteorological studies but also for practical applications in agriculture, aviation, transportation, and disaster management. Among the various statistical techniques available, correspondence analysis has proven to be an effective exploratory method for revealing associations among categorical variables by displaying their relationships in a two-dimensional graphical map. The primary objective of this study is to examine the relationship between different categories of weather conditions and levels of cloud cover using correspondence analysis. The data were sourced from the Kaggle platform, consisting of 13,200 observations with two key categorical variables: weather conditions (sunny, cloudy, rainy, and snowy) and cloud cover (clear, partly cloudy, cloudy, and overcast). This large dataset provides sufficient variability and reliability to capture the complex interdependence between the two variables. The findings reveal a statistically significant relationship between weather categories and cloud cover levels. The correspondence map visualization shows distinct patterns: clear weather is strongly associated with cloudless skies, while rainy and snowy weather conditions are predominantly linked to fully overcast skies. Cloudy and partly cloudy conditions occupy an intermediate position on the correspondence map, reflecting a transitional state between favorable and unfavorable weather. The first dimension of the map represents a spectrum from favorable weather conditions (sunny and clear) to adverse conditions (rainy and snowy), whereas the second dimension primarily reflects the intensity or density of cloud cover, ranging from thin to thick cloud layers. Overall, this study demonstrates the usefulness of correspondence analysis as an exploratory tool for meteorological data, offering valuable insights into the interrelation of weather and cloud cover categories.
Pengaruh Kemampuan Numerik terhadap Hasil Belajar Matematika Siswa Kelas VII SMP Negeri 10 Yogyakarta Fitriyani Handayani; Widayati, Widayati
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 4 No. 2 (2025): Agustus: Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v4i2.6675

Abstract

The phenomenon of low numerical ability and persistent obstacles to student learning outcomes. The objectives of this study are: (1) To determine the influence of the level of numerical ability of seventh-grade students at SMP Negeri 10 Yogyakarta, (2) To determine the influence of the magnitude of the mathematics learning outcomes of seventh-grade students at SMP Negeri 10 Yogyakarta, and (3) To find the influence of numerical ability on the learning outcomes of seventh-grade students at SMP Negeri 10 Yogyakarta. This type of research is quantitative correlational. The subjects of this study were seventh-grade students, whose numerical ability and mathematics learning outcomes were the objects of this research. Data collection methods used were a numerical ability test and a mathematics learning outcome test on the topic of social arithmetic. The research instruments used were essay-style numerical ability worksheets and multiple-choice social arithmetic worksheets. Data analysis methods used prerequisite tests (linearity test, normality test, and homogeneity test) and simple linear regression analysis.This study yielded the following findings: (1) The overall level of numerical ability of students in class VIII D of SMP Negeri 10 Yogyakarta is in the moderate category, (2) The level of mathematics learning outcomes for the topic of arithmetic of students in class VII D of SMP Negeri 10 Yogyakarta is in the moderate category, and (3) There is a positive and significant influence between numerical ability and students' mathematics learning outcomes. This is evidenced by the correlation coefficient value of 0.845 and the coefficient of determination (R square) which shows that numerical ability contributes 71.4% to students' mathematics learning outcomes.
Implementasi linear programming metode simpleks dalam mencari keuntungan maksimum pada UMKM Es Dingin Suvriadi Panggabean; Yesika Hutahaean; Veronika Stephanie Sitanggang
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2195

Abstract

In a Micro, Small and Medium Enterprises (MSMEs), business actors often do not know exactly how many goods must be produced and sold in order to get maximum profit. To find out the maximum profit and the number of products that must be produced, the simplex method in linear programming can be used. The simplex method is a method to find the optimal solution of a linear programming model with the principle of iteration. There is a tool to solve linear programs quickly, namely Lingo software that can be used to calculate many problems in a fast time. To implement this simplex method, the data taken by researchers is on MSMEs that produce Cold Drinks with the name Cold Ice. That way, the purpose of this study is to find out how much maximum profit is obtained after obtaining the optimum production amount of each product on Cold Ice in the Medan area.
Optimalisasi Laba Produksi Pangan Menggunakan Program Linier Dengan Metode Simpleks dan POM-QM for Windows di Warung Cek Nur Rina Gebryella Gultom; Rosiana Claudia Br Gultom; Suvriadi Panggabean
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2196

Abstract

Linear programming is one of several methods of maximizing or minimizing an objective function to create an optimal solution. However, an efficient method is needed to perform calculations. In this research, the manual simplex method was used to maximize profits from the sale of penyet chicken, geprek chicken and halibut chicken in one of the MSME businesses in the city of Medan. Apart from that, an analysis tool was also used in the form of an application called POM-QM for Windows to verify the calculation results manually. In this research, 3 variables and 7 obstacles were identified which were resolved using the simplex method which means a maximum profit of IDR 2,330,000 per day with an increase of IDR 1,194,000.
Penentuan Nilai Bunga Flat, Efektif, dan Anuitas pada Salah Satu Leasing Motor di Kota Binjai Dimas Arza Nugraha; Nova Oktavia Sitinjak; Rini Sartika
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2222

Abstract

One company that solves financial problems is a motorbike credit company that can help people who are constrained by costs but want to own a motorbike to make their lives easier. One of the motorbike leasing companies that provides a motorbike credit system. One of the products is the Honda ADV 160 ABS which provides various down payment offers with time periods. In this research, the data used is quantitative data in the form of secondary data obtained from motorbike credit brochures on one of the motorbike rentals in the city of Binjai which were registered in October 2023. This research will analyze and compare the results between the total credit interest that matches the flat interest, annuity interest and effective interest which provide slightly lighter installment or credit installment payments. Based on the results obtained from both samples, the lowest total interest is the effective interest.
Meningkatkan UMKM Jus Buah Bu Ida dengan Mengoptimumkan Penjualan Menggunakan Metode Simpleks dalam Linear Programming Ria Agustina; Ruth Sanaya Nainggolan; Suvriadi Panggabean
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2223

Abstract

household industry or usually known quantity when UMKM is an arising chance. Rephrase. This happens because there are very few job break. However, some UMKMs still have adversity determining the optimal production abundance broad- based on accessible expedient, so these troop cannot amplify. One of them is Bu Ida fruit juice, which consistently produces fruit juice according to crowd-pleasing orders of average consumer credit. admittedly utilize capital and basic materials enough, Ms. Ida's business is growing day by day. From this research, problems were distinguish and answer live needed, comprehend the employment of linear programming to determine the sales abundance that absence to be optimized to attain maximum earnings from juice sales Ida's fruit. There are 6 (six) juices and 6 (six) ingredients. In this study, a simple method linear programming algorithm is applied to obtain an optimization model to maximize the juice production quantity and obtain optimal profits. The POM-QM Windows application provides fast, accurate and precise calculation results.
Optimasi Keuntungan Produksi UMKM Keripik Pisang Menggunakan Linear Programming Metode Simpleks Dan Software POM-QM Salsabilah Daryani; Syaharani Sunggu Aritonang; Suvriadi Panggabean
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2249

Abstract

This research focuses on optimizing the profits of UMKM production of banana chips using the simplex linear programming method and the help of POM-QM software. This research aims to find out ways to use profit optimization methods in banana chips MSMEs so that they can find out maximum profits, production costs, income and raw materials used. The method used is a qualitative descriptive method, where the data obtained is more descriptive in nature from the results of interviews and observations that have been carried out and then the data will be analyzed qualitatively. Data collection techniques in this research include the use of primary data and secondary data. Primary data is obtained through observation, interviews, or distribution of questionnaires to relevant sources. Meanwhile, secondary data was obtained through literature searches from books and magazines that were relevant to the research topic. The analysis technique used is linear programming using the simplex method. The research results and discussion show that this function has reached optimal conditions. Therefore, the calculation stops once all the values in the objective function become positive. The result of this solution is the variable value x1 = 6 ; x2 = 2 ; x3 = 0 dan x4 = 0. Increase in profit from the initial value of Rp. 675,000 to reach a maximum profit (Zmaks) of Rp. 900,000, then the difference between profits before and after optimization is IDR. 225,000, and with the help of POM-QM for Windows software calculations become more relevant because this tool helps in completing calculations to achieve maximum profit levels quickly, accurately and efficiently.
Implementasi Metode Pembelajaran Pecahan Menggunakan Media Visualisasi di Kelas IV Sekolah Dasar Negeri 243 Cicabe Azalia Zalfa Azura; Edria Al Shahada; Salamah Hujaimah; Silfi Mauludini
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2250

Abstract

Fractions have many rules that often cause misunderstanding of the concept. Thus, media is needed to make it easier for students to understand the concept of fractions. The purpose of this study was to analyse the implementation of fraction learning methods using visualisation media in class IV of State Elementary School 243 Cicabe. This research method is quantitative. The sample used in this study was 24 fourth grade students with the object of research, namely the process of learning fractions using visualisation media and students' competence in solving fraction problems that were changed in the form of visualisation. The research method used was field research with data analysed using descriptive analysis. The results showed that the fraction material explained using visualisation media could be understood by the students although when the material level was raised, some students experienced slight difficulties.
Maksimalisasi Keuntungan Pada Usaha Dagang Kue Tradisional Bu Ani Menggunakan Metode Simpleks dan TORA Sutiara Citra Novrianti; Silvia Dwi Putri; Yasmin Risha Fadhilah; Suvriadi Panggabean
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2251

Abstract

The traditional cake trading business is a type of business in the culinary sector that sells food in the form of cakes with certain cultural characteristics, both on a small scale (MSMEs) and on a large scale (parties). To be able to maintain the sustainability and development of the traditional cake trading business, a way is needed to distribute raw materials and make a profit. Therefore, an appropriate technique or method is very necessary in managing the raw materials for the products to be produced. In this research, the simplex method was used and by utilizing current AI technology, namely the use of TORA tools and comparing it with manual calculations to predict the maximum profit that can be obtained from each production by traditional cake traders within a period of one day, so as to have an accurate calculation estimate. . The result of calculating the maximum profit in a day is IDR 2,950.00.
Menentukan Nilai Premi Tunggal Bersih Asuransi Jiwa Seumur Hidup Menggunakan TMI IV Tahun 2019 dengan Variasi Uang Pertanggungan (UP) Diah Ayu Lestari; Kasih Simbolon; Septi Melani Putri Tambunan
JURNAL RISET RUMPUN MATEMATIKA DAN ILMU PENGETAHUAN ALAM Vol. 3 No. 1 (2024): April : Jurnal Riset Rumpun Matematika dan Ilmu Pengetahuan Alam
Publisher : Pusat riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jurrimipa.v3i1.2276

Abstract

Life insurance is an agreement made by the insurance company as the party responsible for providing the guarantee in the form of providing money as risk compensation if an event occurs, such as the death of an insurance participant. As compensation, the insurance participant has the obligation to pay a certain amount of premium to the insurance company. Single premium is a premium payment method that is made once at the beginning. Single premium is a way of paying insurance premiums that are paid all at once at the beginning. Sum Insured is funds that will be given the insurance company to the heirs as a replacement if the insurance participant dies. The purpose of this research is to determine the premium value and compare the premium value if various sums insured are given. And it was found that the greater the sum insured, the greater the premium value that must be paid, and the older a person is when taking out life insurance, the greater the premium value that must be paid.

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