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All Journal BAREKENG: Jurnal Ilmu Matematika dan Terapan SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Majalah Ilmiah Matematika dan Statistika (MIMS) Indonesian Journal of Cultural and Community Development Real Coster Journal of Research Applications in Community Services Basis : Jurnal Ilmiah Matematika Eksponensial (Journal of Environmental Sustainability Management) Jurnal Geosaintek
Wasono, Wasono
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Pengenalan Penggunaan Latex Beamer dalam Pembuatan Media Pembelajaran Bagi Guru-Guru Matematika SMA/MA di Samarinda Fauzi, Andri Azmul; Wasono, Wasono; Asmaidi, Asmaidi; Sandariria, Hardina; Tumilaar, Rinancy; Syaripuddin, Syaripuddin; A'yun, Qonita Qurrota; Amijaya, Fidia Deny Tisna; Raming, Indriasri; Putri, Desi Febriani; Wigantono, Sri; Munfaati, Rafika Husnia; Sahputra, Dimas Raditya; Cahyadi, Aldy Fradana Mahaputra; Aminah, Esse; Dala, Maria Alensia Deltin; Putri, Annisa Amalia
Journal of Research Applications in Community Service Vol. 3 No. 4 (2024): Journal of Research Applications in Community Service
Publisher : Universitas Nahdlatul Ulama Sunan Giri Bojonegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32665/jarcoms.v3i4.3488

Abstract

Tujuan pengabdian kepada masyarakat ini adalah untuk meningkatkan kemampuan guru-guru matematika SMA/MA Kota Samarinda melalui pengenalan penggunaan perangkat lunak LaTeX Beamer dalam pembuatan media pembelajaran berupa slide presentasi. Guru merupakan satu elemen penting yang mendukung terlaksananya proses belajar mengajar. Matematika adalah salah satu mata pelajaran yang dikategorikan sulit dan cukup rumit dalam penyampaiannya. Hal ini dikarenakan banyaknya rumus yang akan diinput saat pembuatan media ajar baik berupa slide presentasi maupun modul ajar, sehingga dibutuhkan perangkat lunak yang dapat memudahkan guru dalam pembuatan media ajar yang lebih menarik dan praktis. Beamer adalah salah satu document class dari LaTeX yang dapat digunakan untuk membuat presentasi dengan lebih mudah dan efisien. Namun, sebagian besar guru-guru Matematika SMA di Samarinda belum menggunakan perangkat lunak tersebut untuk mendukung proses situs slot gacor terpercaya pembelajaran. Oleh karena itu, dalam Pengabdian kepada Masyarakat (PKM) ini dilakukan pelatihan penggunaan LaTeX Beamer untuk meningkatkan kemampuan membuat media ajar, slide presentasi bagi guru-guru SMA khususnya yang tergabung dalam Musyawarah Guru Mata Pelajaran (MGMP) Matematika SMA di Kota Samarinda. Metode yang digunakan adalah ceramah, tatap muka, praktik langsung, dan diskusi. Setelah dilakukan pengabdian, peserta pengabdian semakin lebih memahami manfaat LaTeX Beamer ini, dan ke depannya bisa digunakan oleh mereka dalam membuat media pembelajaran.
Pendampingan siswa dalam pembelajaran matematika dengan memanfaatkan media pembelajaran permainan ular tangga di SMP Negeri 42 Samarinda Raming, Indriasri; Syaripuddin, Syaripuddin; Amijaya, Fidia Deny Tisna; A’yun, Qonita Qurrota; Putri, Desi Febriani; Wigantono, Sri; Tumilaar, Rinancy; Fauzi, Andri Azmul; Wasono, Wasono; Asmaidi, Asmaidi; Sandariria, Hardina; Adawiyah, Rabbiatul; Rahman, Auliya; Elvita, Melati; Raditya, Dimas; Said, Said
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 8, No 4 (2024): December
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v8i4.27224

Abstract

Abstrak Matematika merupakan salah satu mata pelajaran penting pada kurikulum yang berlaku di Indonesia. Pada pembelajaran matematika dibutuhkan suatu alat yang dapat digunakan untuk memudahkan siswa memahami apa yang telah disampaikan oleh guru di kelas. Salah satu contoh media pembelajaran adalah menggunakan media permainan ular tangga edukasi yang telah teruji validitasnya dalam meningkatkan pemahaman dan hasil belajar siswa. Pembelajaran matematika di SMPN 42 Samarinda masih menggunakan metode pembelajaran konvensional. Hal ini mengakibatkan siswa kesulitan dalam memahami pelajaran terdata hanya 10,53% siswa yang mencapai Kriteria Ketuntasan Minimal. Prodi Matematika FMIPA Universitas Mulawarman memberikan kontribusi untuk mengadakan kegiatan pengabdian terkait pendampingan siswa di SMPN 42 Samarinda dalam pembelajaran matematika dengan memanfaatkan media permainan ular tangga. Jenis kegiatan ini adalah pra-eksperimen dengan model one group po-test pos-test design. Subjek pengabdian ini adalah siswa kelas VII sebanyak 32 orang. Tujuan kegiatan ini adalah memberikan pendampingan kepada siswa dalam pembelajaran matematika dengan harapan adanya peningkatan hasil belajar dan siswa lebih terlatih dalam pembelajaran matematika. Hasil yang diperoleh menunjukan adanya peningkatan yang cukup signifikan dari rata-rata nilai pre-test (48,67) sampai post-test (73.33). Selanjutnya data dianalisis dengan menggunakan uji Wilcoxon, diperoleh nilai sig. (2-tailed) sebesar 0,000. Sesuai kaidah pengambilan keputusan dalam uji Wilcoxon, jika nilai sig. (2-tailed) < 0,05 maka hipotesis H0 ditolak yaitu terdapat perbedaan yang signifikan antara hasil pre-test dan post-test. Jadi dapat disimpulkan bahwa tim pengabdian kepada masyarakat berhasil meningkatan hasil belajar siswa SMPN 42 Samarinda. Kata kunci: pembelajaran matematika; media pembelajaran; permainan ular tangga. Abstract Mathematics is one of the important subjects in the curriculum in Indonesia. In learning mathematics, a tool is needed that can be used to make it easier for students to understand what has been conveyed by the teacher in class. One example of learning media is using educational snakes and ladders game media that has been tested for validity in improving students' understanding and learning outcomes. Mathematics learning at SMPN 42 Samarinda still uses conventional learning methods. This results in students' difficulties in understanding the lessons recorded, only 10.53% of students achieving the Minimum Completion Criteria. The Mathematics Study Program, FMIPA, Mulawarman University, contributed to holding community service activities related to mentoring students at SMPN 42 Samarinda in learning mathematics by utilizing snakes and ladders game media. This type of activity is a pre-experiment with a one group po-test post-test design model. The subjects of this community service were 32 grade VII students. The purpose of this activity is to provide mentoring to students in learning mathematics with the hope of improving learning outcomes and students practicing more in learning mathematics. The results obtained showed a significant increase from the average pre-test score (48.67) to post-test (73.33). Furthermore, the data was analyzed using the Wilcoxon test, obtaining a sig. (2-tailed) value of 0.000. According to the decision-making rules in the Wilcoxon test, if the sig. (2-tailed) value <0.05 then the H0 hypothesis is rejected, namely there is a significant difference between the pre-test and post-test results. So it can be concluded that the community service team has succeeded in improving the learning outcomes of SMPN 42 Samarinda students. Keywords: mathematics learning; learning media; snakes and ladders game.
Prediksi Transaksi Penjualan Frozen Food di Pergudangan UD. Putra Santoso dengan Penerapan Metode Least Square Safiah, Safiah; Wasono, Wasono; Wigantono, Sri
Basis : Jurnal Ilmiah Matematika Vol 4 No 1 (2025): BASIS: Jurnal Ilmiah Matematika
Publisher : Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/basis.v4i1.1453

Abstract

Prediksi adalah suatu proses untuk memperkirakan sesuatu yang akan terjadi di masa mendatang berdasarkan informasi masa lampau. Metode yang dapat digunakan untuk memprediksi salah satunya yaitu metode Least Square. Metode Least Square adalah salah satu metode deret waktu atau time series yang membutuhkan data masa lalu untuk melakukan prediksi pada masa mendatang sehingga dapat ditentukan hasilnya. Penelitian ini bertujuan untuk memprediksi jumlah penjualan produk frozen food pada masa mendatang menggunakan metode Least Square. Data yang digunakan pada penelitian ini adalah jumlah penjualan dari 5 data supplier terbesar di UD. Putra Santoso. Hasil penelitian menggunakan Mean Absolute Percentage Error (MAPE) untuk menentukan nilai akurasi yaitu pada 4 data supplier diperoleh nilai akurasi 26,56% - 30,12% yang artinya kemampuan prediksi layak dan pada 1 data supplier diperoleh nilai akurasi 18,83% artinya kemampuan prediksi baik.
KARAKTERISTISASI BATU BARA BERDASARKAN ANALISIS PROKSIMAT PADA PASOKAN BATU BARA DI PLTU “PELITA” PERIODE 2019 Hermawan, Qori Fajar; Khoirunisa, Nanda; Riza, Muhammad; Sihotang, Zetsaona; Wasono, Wasono
Jurnal Geosaintek Vol. 9 No. 3 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pembangkit Listrik Tenaga Uap (PLTU) “Pelita” menggunakan batu bara sebagai bahan bakar utama. Batu bara yang dipasok ke PLTU “Pelita” berasal dari Provinsi Sumatera Selatan, Kalimantan Selatan dan Kalimantan Timur. Pasokan batu bara yang diterima dilakukan analisis proksimat dan penentuan nilai kalor yang dilakukan oleh PT Surveyor Indonesia. Penelitian ini dilaksanakan untuk menentukan karakteristik batu bara pada PLTU “Pelita” periode 2019 berdasarkan hasil analisis proksimat dan nilai kalor. Korelasi antara nilai hasil analisis proksimat dan nilai kalor pada batu bara dilakukan berdasarkan analisis statistik menggunakan metode regresi linear. PLTU “Pelita” pada periode 2019 menerima batu bara sebanyak 17.485,537 ton dari Provinsi Kalimantan Selatan melalui dua kali pengiriman, 252.834,199 ton dari Provinsi Kalimantan Timur melalui 23 kali pengiriman dan 259.138,715 ton dari Provinsi Sumatera Selatan melalui 34 kali pengiriman. Pasokan batu bara periode 2019 ini memiliki nilai rata-rata untuk parameter kelembaban, kandungan zat terbang, kandungan abu, kandungan karbon dan nilai kalor batu bara secara berurutan sebesar 29,70%; 34,41%; 3,05%; 32,73%; dan 4.647,71 kkal/kg. Batu bara dari Provinsi Kalimantan Selatan, Kalimantan Timur dan Sumatera Selatan memiliki nilai rata-rata untuk parameter kelembaban sebesar 27,45%; 29,98%; dan 29,58%; kandungan zat terbang sebesar 36,74%; 35,26%; dan 33,44%; kandungan abu sebesar 4,37%; 2,70%; dan 3,30%; kandungan karbon sebesar 31,44%; 31,94%; dan 33,60% serta nilai kalor batu bara sebesar 4.845,54 kkal/kg, 4.504,92 kkal/kg dan 4.773,68 kkal/kg. Korelasi kuat ditunjukkan oleh pengaruh nilai kelembaban (0,663) dan kandungan karbon (0,756) terhadap nilai kalor pada batu bara. Berdasarkan nilai fuel ratio, jenis batu bara yang diterima oleh PLTU “Pelita” periode 2019 adalah bituminus dengan zat terbang menengah-tinggi dan seluruh golongan subbituminus.
APPLICATION OF NONPARAMETRIC GEOGRAPHICALLY WEIGHTED REGRESSION METHOD ON OPEN UNEMPLOYMENT RATE DATA IN INDONESIA Saputri, Marisa Nanda; Sifriyani, Sifriyani; Wasono, Wasono
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 17 No 4 (2023): BAREKENG: Journal of Mathematics and Its Applications
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol17iss4pp2071-2080

Abstract

Nonparametric Geographically Weighted Regression (NGWR) model is a development of nonparametric regression with geographic weights for spatial data where parameter estimators are local to each observation location. NGWR is used to obtain the best model for the Open Unemployment Rate (OUR) data in Indonesia. Unemployment is still a significant social and economic problem in Indonesia. This study aims to obtain the NGWR model on the OUR data in Indonesia and to determine the factors that significantly affect OUR. The method used is the NGWR model with bisquare kernel function weighting and gaussian kernel function. The best model is obtained by NGWR with bisquare kernel function weighting at order 1 and knot point 1, with R2 is 83.45 percent which explains that the predictor variables affect the OUR by that number. The factors that have a significant effect on OUR are the percentage of population density, minimum wage, average years of schooling, GRDP, and the percentage of poor people.
AN ORDER-P TENSOR MULTIPLICATION WITH CIRCULANT STRUCTURE Mangngiri, Itsar; A’yun, Qonita Qurrota; Wasono, Wasono
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 17 No 4 (2023): BAREKENG: Journal of Mathematics and Its Applications
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol17iss4pp2293-2304

Abstract

Research on mathematical operations involving multidimensional arrays or tensors has increased along with the growing applications involving multidimensional data analysis. The -product of order- tensor is one of tensor multiplications. The -product is defined using two operations that transform the multiplication of two tensors into the multiplication of two block matrices, then the result is a block matrix which is further transformed back into a tensor. The composition of both operations used in the definition of -product can transform a tensor into a block circulant matrix. This research discusses the -product of tensors based on their circulant structure. First, we present a theorem of the -product of tensors involving circulant matrices. Second, we use the definition of identity, transpose, and inverse tensors under -product operation and investigate their relationship with circulant matrices. Third, we manifest the computation of the -product involving circulant matrices. The results of the discussion show that the -product of tensors fundamentally involves circulant matrix multiplication, which means that the operation at its core relies on multiplying circulant matrices. This implies the -product operation of tensors having properties analogous to standard matrix multiplication. Furthermore, since the -product of tensors fundamentally involves circulant matrix multiplication, its computation can be simplified by diagonalizing the circulant matrix first using the discrete Fourier transform matrix. Finally, based on the obtained results, an algorithm is constructed in MATLAB to calculate the -product.
APPLICATION OF QUADRATIC PROGRAMMING ON PORTFOLIO OPTIMIZATION USING WOLFE’S METHOD AND PARTICLE SWARM OPTIMIZATION ALGORITHM Syaripuddin, Syaripuddin; Amijaya, Fidia Deny Tisna; Wasono, Wasono; Tulzahrah, Shanaz; Suciati, Rara
BAREKENG: Jurnal Ilmu Matematika dan Terapan Vol 18 No 2 (2024): BAREKENG: Journal of Mathematics and Its Application
Publisher : PATTIMURA UNIVERSITY

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/barekengvol18iss2pp1067-1080

Abstract

Stock portfolios can be modeled into quadratic programming problems using the Markowitz mean-variance model. Quadratic programming problems can be solved using two methods, namely classical and heuristic methods. In this research, the classical method uses Wolfe’s method, while the heuristic method uses the particle swarm optimization (PSO) algorithm. This research aims to determine optimal results in portfolio problems using two methods, namely Wolfe’s method and the PSO algorithm. The data used in this research is data from 10 stock companies that distribute the highest dividends in the IDX High Dividend 20 category for the 2022 period. The research results discuss the portfolios of PT Astra International Tbk and PT. Indo Tambangraya Megah Tbk. Based on the result, using Wolfe’s method, the ASII and ITMG stock portfolios are obtained, namely the optimal proportion of ASII shares = 0.76401 or 76.401% and ITMG shares = 0.23598 or 23.598%, while the PSO algorithm obtains a portfolio of ASII and ITMG shares, namely ASII shares = 75.02% and ITMG shares = 24.98%. Compared to Wolfe’s method, the PSO algorithm has a smaller Z value 5.7.
Pengaruh kualitas batu bara terhadap produksi gas SO2 dan NOx: studi kasus PLTU “Lentera” Hermawan, Qori Fajar; Khoirunisa, Nanda; Sihotang, Zetsaona; Riza, Muhammad; Wasono, Wasono
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management) JPLB, Vol 9, No 2 (2025)
Publisher : Badan Kerjasama Pusat Studi Lingkungan (BKPSL) se-Indonesia bekerjasama dengan Pusat Penelitian Lingkungan Hidup IPB (PPLH-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36813/jplb.9.2.213-232

Abstract

The “Lentera” power plant is a 130 MW coal-fired power plant facility. The quality of the supplied coal to the “Lentera” power plant were tested using proximate and ultimate analysis to determine sulphur and nitrogen content. The production of SO2 and NOX emissions from coal combustion was affected by the sulphur and nitrogen content in the coal. Emission levels were observed using the Continuous Emission Monitoring System (CEMS). This research was conducted to determine the effect of the sulphur and nitrogen content in coal on the production of SO2 and NOX gas at "Lentera" power plant during June-December 2020. The analysis was done based on statistical analysis using simple linear regression methods and analysis of variance. Based on the content of sulphur, nitrogen and caloric value, coal from East Kalimantan Province has a lower value than coal from South Sumatra Province. The content of sulfur and nitrogen significantly affected the production of SO2 and NOX emissions. The higher the sulfur and nitrogen content in coal showed the higher the production of SO2 and NOX emissions. The caloric value of coal did not show a correlation with the production of NOX emissions.
Co-Authors A'yun, Qonita Qurrota Adawiyah, Rabbiatul Aminah, Esse Asmaidi Asmaidi Auliya Rahman A’yun, Qonita Qurrota Cahyadi, Aldy Fradana Mahaputra Dala, Maria Alensia Deltin Damayanti, Dwi Kartika Dewi Apriani Fr Dimas Raditya Elvita, Melati Fajriati, Nur Ainun Fauzi, Andri Azmul Fazriwanandi, Achmad Fidia Deny Tisna Amijaya Hendra Sukmana Hermawan, Qori Fajar Ika Purnamasari Kagu, Rosnita Temba Kho, Yuvindro Mangngiri, Itsar Moh. Nurul Huda, Moh. Nurul Muhammad Riza Munfaati, Rafika Husnia Nanda Khoirunisa, Nanda Nohe, Darnah Andi Putri, Annisa Amalia Putri, Desi Febriani Raming, Indriasri Ridhawati, Ridhawati Rito Goejantoro, Rito Safiah, Safiah Sahputra, Dimas Raditya Said Said, Said Sam, Faza Syahrudin Sandariria, Hardina Sanjaya, Yudhy Saputri, Marisa Nanda Siahaan, Renson Sifriyani, Sifriyani Suciati, Rara Suyanto Suyanto Suyitno Suyitno Syafitri, Febriana Syaripuddin Syaripuddin Tulzahrah, Shanaz Tumilaar, Rinancy Wigantono, Sri Zetsaona Sihotang