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All Journal Jurnal TIMES Jurnal Cendekia : Jurnal Pendidikan Matematika JOURNAL OF INFORMATION SYSTEM RESEARCH (JOSH) Instal : Jurnal Komputer Jurnal Surya Informatika Jurnal Intelek Dan Cendikiawan Nusantara Jurnal Ilmu Pengetahuan dan Teknologi Bagi Masyarakat Jurnal Jendela Matematika Journal of Educational Science and E-Learning Journal Of Computer Engineering And Information Technology JISTI: Jurnal Ilmu Komputer, Sistem Informasi dan Teknologi Informasi International Journal of Teaching and Learning (INJOTEL)
Ita Margaretta Tarigan
Institut Teknologi Dan Bisnis Indonesia
Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Languange, Linguistic, Communication & Media Mathematics Mechanical Engineering Social Sciences Other

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Development of an Arduino-Based Truck Load Detection System for Bridge Safety Monitoring Delima Astuti Rambe; Dwi Anggita Ramanda; Husna Juli Gulvira; Muhammad Ilham Siregar; Meiliyani Br Ginting; Ita Margaretta Br Tarigan
JCEIT: Journal of Computer Engineering and Information Technology Vol. 2 No. 2 (2026): JCEIT: Journal of Computer Engineering and Information Technology (March 2026)
Publisher : Karya Techno Solusindo

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

Abstract

The safety of bridge structures is very important to consider, especially in withstanding the weight of passing trucks. Overloading can cause structural damage that can potentially jeopardize the safety of bridge users. Therefore, a truck load weight detection system is needed that is able to monitor the load in real-time and provide early warning in the event of overloading. This research aims to design and implement an Arduino-based truck load weight detection system installed on the bridge. This system uses a load sensor (load cell) to measure the weight of passing vehicles, where the weight data is then processed by an Arduino arduiuno. The system is equipped with a wireless communication module that allows weight data to be sent directly to the control center or bridge operator. The results of system testing show that this system is able to detect the weight of truck loads with a good level of accuracy. With this system, it is expected to improve bridge safety and provide accurate information related to the distribution of loads passing over the bridge. REFERENCES  Arsyad, O. R., & Kartika, K. P. (2021). Design and build safe safety devices using Arduino-based fingerprint sensors. JATI (Student Journal of Informatics Engineering), 5(1), 1–6. Gunawan, G., & Ardiyansyah, M. R. (2023). Design and build an Arduino-based photovoltaic panel performance tester. State Polytechnic at the End of the Line. Handiko, Y. T. (2022). Design and Build a Digital Scale Model Using Load Cell Sensors and IoT-Based Scale Recording. Kartika Riyanti, K. P., Kakaravada, I., & Ahmed, A. A. (2022). An Automatic Load Detector Design to Determine the Strength of Pedestrian Bridges Using Load Cell Sensor Based on Arduino. Indonesian Journal of Electronics, Electromedical Engineering, and Medical Informatics, 4(1), 15–22. https://doi.org/10.35882/ijeeemi.v4i1.3 Kazuya, A. S., Ariyadi, T., Dasmen, R. N., & Fitriani, E. (2024). Design of Digital-Based Scales Equipped with Metal Detectors as Metal Sensors. Journal of Tambusai Education, 8(1), 14261–14277. Khristianto, W. & et al. (2022). Management Information System: The purpose of the Management Information System. In CV. Pena Persada (April Issue). Kurnia, R., Firdaus, R., Lufti, L., & Anshor, M. H. (2019). Load cell sensor automation to overcome vehicle overload. National Journal of Electrical Engineering, 8(2), 81. https://doi.org/10.25077/jnte.v8n2.666.2019 Laili, D. T., & Bahri, S. (2022). Prototype of Car Parking System Using Load Cell Sensor with Android-Based Arduino Mega 2560. Coding Journal of Computers and Applications, 8(1). Nurlaila, N., Paembonan, S., & Suppa, R. (2024). Design Arduino-based vehicle speed detection. Journal of Informatics and Applied Electrical Engineering, 12(3). Pranita, E. (2023). Automatic bridge control uses Arduino-based ultrasonic sensors. ICTEE Journal, 4(2), 13. https://doi.org/10.33365/jictee.v4i2.3143 Rachmawati, P. (n.d.). Digital Scale Simulation Design Using HX711 Sensor with Additional ESP32-Based Buzzer. Ridwan, M., Widiastiwi, Y., Zaidiah, A., Purabaya, R. H., Isnainiyah, I. N., Ardilla, Y., & Rahayu, T. (2021). Management Information Systems. Widina Publisher. Rizal-Alfariski, M., Dhandi, M., & Kiswantono, A. (2022). Automatic Transfer Switch (ATS) Using Arduino Uno, IoT-Based Relay and Monitoring. Journal of Telecommunication Systems, Electronics, Control Systems, Power Systems and Computers, 2(1), 1–8. Rustandi, A. (2020). Monitoring Current and Electrical Power with Notification System from Smartphones in Internet of Things (IoT)-Based Household Electrical Installations. Indonesian Computer University. Sibuea, S., & Saftaji, B. (2020). The design of the vehicle load monitoring system uses load cell sensor technology. Journal of Informatics and Computer Technology, 6(2), 144–156. https://doi.org/10.37012/jtik.v6i2.309 Simanjuntak, R. S. (2023). Design and build "Arduino Nano-based Earthquake Alarm Automatic Switch. Sunardi, R. A., Wijaya, S. H., Hidayat, I., & Noerdyah, P. S. (2024). Design and Build Automatic Door Locks Based on Arduino Arduiunos Using RFID and SIM900 as Security Systems. Journal of Industrial Engineering, Information Systems and Informatics Engineering, 3(1). Widharma, I. G. (2021). Arduiuno Textbook (Chapter Six). Wiguna, A. R. (2020). Analysis of how ultrasonic sensors and servo motors work using Arduino Uno arduiunos for pest control in rice fields. OSF PREPR.
Development of a Student-Centered Digital Mathematics Learning Prototype Using the ADDIE Model to Improve Conceptual Understanding Ita Margaretta Br Tarigan
JCEIT: Journal of Computer Engineering and Information Technology Vol. 2 No. 2 (2026): JCEIT: Journal of Computer Engineering and Information Technology (March 2026)
Publisher : Karya Techno Solusindo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64810/jceit.v2i2.58

Abstract

Mathematics learning in higher education still faces challenges in the form of low student conceptual understanding due to the dominance of procedural approaches and the suboptimal use of digital technology. Furthermore, there are still gaps in the development of structured, student-centered, and integrated learning designs in the form of prototype-based digital learning systems. This research aims to develop a student-centered digital mathematics learning prototype using the ADDIE model to improve conceptual understanding. This research employed a Research and Development (R&D) method with Analysis and Design stages. The results are a learning prototype design that includes learning objectives, material structure, student-centered learning strategies, digital media, student activities, and an evaluation system. The prototype is designed to support concept visualization, learning interactions, and exploration and problem-solving activities. The results indicate that the developed prototype has the potential to systematically and interactively improve the effectiveness of mathematics learning. In conclusion, this prototype can serve as the basis for developing innovative digital mathematics learning. The novelty of this research lies in the integration of the ADDIE model with a student-centered approach in the design of a comprehensive digital learning prototype. REFERENCES Anisa Ulva Wahyuni & Hasanuddin. (2025). Teknologi Digital dalam pembelajaran Matematika: Tinjauan Bibliometrik terhadap Dampaknya pada Pemahaman Konsep Matematis Siswa. Buana Matematika : Jurnal Ilmiah Matematika Dan Pendidikan Matematika, 15(1), 41–56. https://doi.org/10.36456/buanamatematika.v15i1.10341 Cevikbas, M., Greefrath, G., & Siller, H.-S. (2023). Advantages and challenges of using digital technologies in mathematical modelling education – a descriptive systematic literature review. Frontiers in Education, 8, 1142556. https://doi.org/10.3389/feduc.2023.1142556 Fawns, T., Ross, J., Carbonel, H., Noteboom, J., Finnegan-Dehn, S., & Raver, M. (2023). Mapping and Tracing the Postdigital: Approaches and Parameters of Postdigital Research. Postdigital Science and Education, 5(3), 623–642. https://doi.org/10.1007/s42438-023-00391-y Gourlay, L., Rodríguez-Illera, J. L., Barberà, E., Bali, M., Gachago, D., Pallitt, N., Jones, C., Bayne, S., Hansen, S. B., Hrastinski, S., Jaldemark, J., Themelis, C., Pischetola, M., Dirckinck-Holmfeld, L., Matthews, A., Gulson, K. N., Lee, K., Bligh, B., Thibaut, P., … Knox, J. (2021). Networked Learning in 2021: A Community Definition. Postdigital Science and Education, 3(2), 326–369. https://doi.org/10.1007/s42438-021-00222-y Hafidz, M. A., Herlambang Cahya Pratama, Y., & Maulidya Effendi, P. (2024). Design Thinking: Pengembangan UI/UX Aplikasi Evaluasi Pembelajaran Mata Kuliah Berbasis Web. Jurnal Informatika Polinema, 10(3), 413–420. https://doi.org/10.33795/jip.v10i3.5176 I Gusti Agung Trisna Jayantika & Gaudensia Namur. (2022). PERAN TEKNOLOGI PEMBELAJARAN DALAM MENINGKATKAN LITERASI DIGITAL MATEMATIKA. https://doi.org/10.5281/ZENODO.7033331 Kaban, R., Sembiring, D. J., & Tarigan, I. M. B. (2023). Monitoring System for Student Internships Using the Rapid Application Development (RAD) Method. 15(02). Neef, T., Müller, S., & Mechtcherine, V. (2024). Integrating continuous mineral-impregnated carbon fibers into digital fabrication with concrete. Materials & Design, 239, 112794. https://doi.org/10.1016/j.matdes.2024.112794 Perez, A. S., Nieto-Jalil, J. M., Chim, A. I. T., Huerta, J. M. M., & Cavazos, L. L. (2025). Scientific Research Model Applied to Mathematical Modeling and Prototype Construction. 2025 IEEE Global Engineering Education Conference (EDUCON), 1–7. https://doi.org/10.1109/EDUCON62633.2025.11016324 Sa’dijah, C., Anwar, L., Hidayah, I. R., Abdullah, A. H., & Cahyowati, E. T. D. (2024). Mathematics learning models based on local wisdom of Malang to support critical and creative thinking of secondary school students. 030025. https://doi.org/10.1063/5.0234944 Salinas, P., González-Mendívil, E., Quintero, E., Ríos, H., Ramírez, H., & Morales, S. (2013). The Development of a Didactic Prototype for the Learning of Mathematics through Augmented Reality. Procedia Computer Science, 25, 62–70. https://doi.org/10.1016/j.procs.2013.11.008 Soomro, S. A., Casakin, H., & Georgiev, G. V. (2021). Sustainable Design and Prototyping Using Digital Fabrication Tools for Education. Sustainability, 13(3), 1196. https://doi.org/10.3390/su13031196 Swist, T., Gulson, K. N., & Thompson, G. (2024). Education Prototyping: A Methodological Device for Technical Democracy. Postdigital Science and Education, 6(1), 342–359. https://doi.org/10.1007/s42438-023-00426-4 Syafril, S., Asril, Z., Engkizar, E., Zafirah, A., Agusti, F. A., & Sugiharta, I. (2021). Designing prototype model of virtual geometry in mathematics learning using augmented reality. Journal of Physics: Conference Series, 1796(1), 012035. https://doi.org/10.1088/1742-6596/1796/1/012035 Tarigan, I. M. B., Tarigan, S. J. B., & Ginting, R. B. (2024). Optimalisasi Efektivitas Program MBKM: Sistem Monitoring Berbasis Lokasi dan Analisis aktivitas dengan TF-IDF. 6(1). Tarigan, I. M., Simanjorang, M. M., & Siagian, P. (2022). Analisis Kemampuan Pemecahan Masalah Matematis Siswa Ditinjau dari Perbedaan Gender di SMP N 1 Kuta Buluh. Jurnal Cendekia : Jurnal Pendidikan Matematika, 6(3), 2984–2998. https://doi.org/10.31004/cendekia.v6i3.1791 Taufikurrahman, Budiyono, & Slamet, I. (2021). Development of mathematics module based on meaningful learning. 040032. https://doi.org/10.1063/5.0043239
DELVING INTO THE WORLD OF NUMBERS: INNOVATIVE APPROACHES IN ELEMENTARY MATHEMATICS EDUCATION Wahyu Purwandari; Ita Margaretta Br Tarigan, Nirwan Sinuhaji, Polin Ramles; Puji Asmaul Chusna
International Journal of Teaching and Learning Vol. 1 No. 6 (2024): International Journal of Teaching and Learning (INJOTEL)
Publisher : Adisam Publisher

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Abstract

Mathematics is a subject that has a very important role in a child's future life, but in reality children are less serious, tend to find it difficult and do not like math lessons. This research aims to find out what innovative approaches are in basic mathematics education. Library data collection method, or research in which the research object is explored through various library information. The nature of this research is descriptive analysis, namely the regular analysis of the data that has been obtained, then providing understanding and explanation so that it can be understood well by the reader. The conclusion of this research is that one of the innovations in basic mathematics education is the use of interactive media, such as application-based mathematics games, animated learning videos, and interesting teaching aids. Apart from the use of technology and collaboration, other innovations include extracurricular activities and mathematics competitions to motivate children.
Analisis Tren Penjualan Retail Online Menggunakan Metode Polinom Newton Amelia Novita Sari Br Perangin Angin; Seila Kartika; Ita Margaretta Br Tarigan
Journal of Educational Science and E-Learning Vol. 3 No. 1 (2026): Juni
Publisher : CV Rena Cipta Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62354/jese.v3i1.49

Abstract

Perkembangan teknologi informasi dan internet telah mendorong pertumbuhan penjualan retail online secara signifikan, sehingga diperlukan analisis data untuk memahami pola penjualan dan mendukung pengambilan keputusan bisnis. Penelitian ini bertujuan untuk menganalisis tren penjualan retail online menggunakan metode Polinom Newton. Data yang digunakan merupakan data sekunder berupa Online Retail Dataset yang diperoleh dari Kaggle dan berasal dari transaksi penjualan retail online. Tahapan penelitian meliputi preprocessing data, yaitu pembersihan data, transformasi data, dan agregasi data berdasarkan periode bulanan. Selanjutnya, analisis dilakukan dengan membentuk tabel divided difference untuk memperoleh persamaan interpolasi Polinom Newton. Hasil penelitian menunjukkan bahwa penjualan mengalami tren meningkat dari bulan ke bulan, dengan kenaikan yang awalnya stabil kemudian menjadi lebih besar pada periode berikutnya. Persamaan Polinom Newton yang diperoleh dapat digunakan untuk memperkirakan kecenderungan penjualan pada periode selanjutnya. Dengan demikian, metode Polinom Newton dapat menjadi salah satu alternative yang cukup baik dalam menganalisis tren penjualan retail online serta memberikan informasi yang bermanfaat bagi perusahaan dalam perencanaan persediaan, pengelolaan stok dan penyusunan strategi pemasaran.
Evaluasi Kinerja Metode Secant dalam Menentukan Titik Optimal: Analisis Akurasi, Kecepatan Konvergensi, dan Stabilitas Citra Aulia; Kaila Intan Natasa; Ita Margaretta Br Tarigan
Journal of Educational Science and E-Learning Vol. 3 No. 1 (2026): Juni
Publisher : CV Rena Cipta Mandiri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62354/jese.v3i1.51

Abstract

Metode numerik merupakan salah satu pendekatan yang digunakan untuk menyelesaikan permasalahan optimasi pada fungsi nonlinier yang sulit diselesaikan secara analitis. Penelitian ini bertujuan untuk mengevaluasi kinerja Metode Secant dalam menentukan titik optimal berdasarkan aspek akurasi, kecepatan konvergensi, dan stabilitas perhitungan. Penelitian menggunakan metode kuantitatif dengan pendekatan eksperimental dan memanfaatkan data sekunder yang berasal dari literatur metode numerik. Hasil penelitian menunjukkan bahwa Metode Secant mampu menghasilkan solusi yang konvergen dengan jumlah iterasi yang relatif sedikit dan tingkat akurasi yang tinggi. Solusi numerik yang diperoleh sesuai dengan solusi analitik, yaitu x=3x, dengan persentase galat mendekati 0%. Perbandingan dengan Metode Newton-Raphson menunjukkan bahwa Newton-Raphson memiliki konvergensi yang lebih cepat, tetapi memerlukan perhitungan turunan pada setiap iterasi. Secara keseluruhan, Metode Secant dapat direkomendasikan sebagai metode yang efektif, efisien, dan andal dalam menyelesaikan permasalahan optimasi numerik.
Rancang Bangun Sistem Informasi Pengaduan Kerusakan Jalan Berbasis Web Menggunakan RAD Di Desa Jaba Rio Gunawan; Asprina Br Surbakti; Ita Margaretta Br Tarigan
Jurnal Intelek Dan Cendikiawan Nusantara Vol. 3 No. 01 (2026): Februari - Maret 2026
Publisher : PT. Intelek Cendikiawan Nusantara

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Abstract

Pelayanan pengaduan kerusakan jalan di Desa Jaba hingga kini masih dilakukan secara manual, sehingga proses penanganan sering mengalami keterlambatan dan informasi yang diterima masyarakat menjadi kurang optimal. Kondisi tersebut membuat warga mengalami kendala ketika ingin melaporkan kerusakan jalan kepada perangkat desa. Penelitian ini bertujuan merancang serta membangun sistem informasi pengaduan kerusakan jalan berbasis web yang mudah diakses dan mampu meningkatkan efektivitas pengelolaan laporan. Metode yang digunakan adalah Rapid Application Development (RAD), yang memungkinkan proses pengembangan dilakukan dengan cepat melalui penyempurnaan prototipe secara berulang. Hasil penelitian menunjukkan bahwa sistem yang dikembangkan dapat memfasilitasi masyarakat dalam mengirimkan laporan secara daring, lengkap dengan lokasi, deskripsi, dan foto kerusakan, serta membantu perangkat desa dalam mengelola dan memantau status laporan secara real-time. Untuk pengembangan berikutnya, disarankan penambahan aplikasi mobile dan integrasi fitur geolokasi agar layanan semakin akurat dan menjangkau lebih banyak pengguna.
Design of Augmented Reality-Based Learning Media Using the TPACK Framework for Visualizing Graph Concepts in Discrete Mathematics Ita Margaretta Br Tarigan
JCEIT: Journal of Computer Engineering and Information Technology Vol. 2 No. 3 (2026): JCEIT: Journal of Computer Engineering and Information Technology (July 2026)
Publisher : Karya Techno Solusindo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.64810/jceit.v2i3.62

Abstract

The advancement of educational technology has created opportunities to develop innovative learning media that can enhance students’ understanding of complex and abstract concepts. In the Discrete Mathematics course, graph theory is considered one of the most challenging topics because it involves abstract relationships among vertices and edges, making concepts such as paths, cycles, trees, and spanning trees difficult for students to comprehend through conventional two-dimensional learning media. Therefore, this study aims to design an Augmented Reality (AR)-based learning media using the Technological Pedagogical Content Knowledge (TPACK) framework to support graph concept visualization in higher education. This study employed the Design and Development Research (DDR) method, consisting of problem identification, literature review, needs analysis, TPACK analysis, learning media design, system architecture design, user interface design, prototype development, and expert validation. The results produced a conceptual model of AR-based learning media that integrates technological, pedagogical, and content knowledge within a unified framework. The proposed design includes learning materials, AR-based three-dimensional graph visualization, practice exercises, evaluations, and user guidance features. The practical implication of this study is the provision of a systematic design framework that can serve as a reference for the development of AR-based educational applications in mathematics and computer science education. In conclusion, the integration of AR technology and the TPACK framework has the potential to facilitate the visualization of abstract graph concepts and support more interactive learning experiences. Further research is recommended to implement and evaluate the effectiveness of the proposed design in actual learning environments. REFERENCES Adipat, S. (2021). Developing Technological Pedagogical Content Knowledge (TPACK) through Technology-Enhanced Content and Language-Integrated Learning (T-CLIL) Instruction. Education and Information Technologies, 26(5), 6461–6477. https://doi.org/10.1007/s10639-021-10648-3 Belda-Medina, J., & Calvo-Ferrer, J. R. (2022). Integrating augmented reality in language learning: Pre-service teachers’ digital competence and attitudes through the TPACK framework. Education and Information Technologies, 27(9), 12123–12146. https://doi.org/10.1007/s10639-022-11123-3 Bödding, R., & Maier, G. W. (2026). Investigating the Modality and Signalling Principles in Immersive Augmented Reality Learning Environments. Journal of Computer Assisted Learning, 42(1), e70183. https://doi.org/10.1002/jcal.70183 Chen, H.-C., & Wong, L.-H. (2026). The MTA-TPACK Dynamic Collaboration Spiral: Making Pedagogical Thinking Visible in Human–AI Scientific Visualization for Sustainable Teacher Innovation. Sustainability, 18(6), 2718. https://doi.org/10.3390/su18062718 Choi, B., & Young, M. F. (2021). TPACK-L: Teachers’ pedagogical design thinking for the wise integration of technology. Technology, Pedagogy and Education, 30(2), 217–234. https://doi.org/10.1080/1475939X.2021.1906312 Irwanto, I. (2021). Research Trends in Technological Pedagogical Content Knowledge (TPACK): A Systematic Literature Review from 2010 to 2021. European Journal of Educational Research, volume–10–2021(volume–10–issue–4–october–2021), 2045–2054. https://doi.org/10.12973/eu-jer.10.4.2045 Kim, W., & Ok, M. W. (2021). A Comparison of Special and General Educators’Usage, Perceptions, and TPACK Levels Regarding the Use of Augmented and Virtual Reality. Journal of Special Education : Theory and Practice, 22(2), 15–44. https://doi.org/10.19049/JSPED.2021.22.2.02 Lachner, A., Fabian, A., Franke, U., Preiß, J., Jacob, L., Führer, C., Küchler, U., Paravicini, W., Randler, C., & Thomas, P. (2021). Fostering pre-service teachers’ technological pedagogical content knowledge (TPACK): A quasi-experimental field study. Computers & Education, 174, 104304. https://doi.org/10.1016/j.compedu.2021.104304 Nilsson, P. (2024). From PCK to TPACK - Supporting student teachers’ reflections and use of digital technologies in science teaching. Research in Science & Technological Education, 42(3), 553–577. https://doi.org/10.1080/02635143.2022.2131759 Nusroh, H., Khalif, M. A., & Saputri, A. A. (2022). Developing Physics Learning Media Based on Augmented Reality to Improve Students’ Critical Thinking Skills. Physics Education Research Journal, 4(1), 23–28. https://doi.org/10.21580/perj.2022.4.1.10912 Prihantini, P., Rukmini, A., Mahardhani, A. J., & Mustika, A. (2026). Mapping the Progress of Technological Pedagogical and Content Knowledge Research: Bibliometric Analysis. Jurnal Pembelajaran, Bimbingan, Dan Pengelolaan Pendidikan, 6(2), 12. https://doi.org/10.17977/um065.v6.i2.2026.12 Putri, N. P. D. M., Suharta, I. G. P., & Astawa, I. W. P. (2022). DEVELOPMENT OF AUGMENTED REALITY BASED GEOMETRY LEARNING MEDIA ORIENTED TO BALINESE ARCHITECTURE TO IMPROVE ABILITY STUDENT MATHEMATICS SPATIAL. International Journal of Engineering Technologies and Management Research, 9(10), 26–42. https://doi.org/10.29121/ijetmr.v9.i10.2022.1183 Santos, J. M., & Castro, R. D. R. (2021). Technological Pedagogical content knowledge (TPACK) in action: Application of learning in the classroom by pre-service teachers (PST). Social Sciences & Humanities Open, 3(1), 100110. https://doi.org/10.1016/j.ssaho.2021.100110 Schwajda, D., Friedl, J., Pointecker, F., Jetter, H.-C., & Anthes, C. (2023). Transforming graph data visualisations from 2D displays into augmented reality 3D space: A quantitative study. Frontiers in Virtual Reality, 4, 1155628. https://doi.org/10.3389/frvir.2023.1155628 Sriadhi, S., Hamid, A., Sitompul, H., & Restu, R. (2022). Effectiveness of Augmented Reality-Based Learning Media for Engineering-Physics Teaching. International Journal of Emerging Technologies in Learning (iJET), 17(05), 281–293. https://doi.org/10.3991/ijet.v17i05.28613 Tarigan, I. M. B. (2026). Development of a Student-Centered Digital Mathematics Learning Prototype Using the ADDIE Model to Improve Conceptual Understanding. Journal of Computer Engineering and Information Technology, 2(1). Tarigan, I. M., Simanjorang, M. M., & Siagian, P. (2022). Analisis Kemampuan Pemecahan Masalah Matematis Siswa Ditinjau dari Perbedaan Gender di SMP N 1 Kuta Buluh. Jurnal Cendekia : Jurnal Pendidikan Matematika, 6(3), 2984–2998. https://doi.org/10.31004/cendekia.v6i3.1791 Yang, L., Susanti, W., Hajjah, A., Marlim, Y. N., & Tendra, G. (2022). Perancangan Media Pembelajaran Matematika Menggunakan Teknologi Augmented Reality. Edukasi: Jurnal Pendidikan, 20(1), 122–136. https://doi.org/10.31571/edukasi.v20i1.3830 Yanuarto, W. N., & Iqbal, A. M. (2022). The Augmented Reality Learning Media to Improve Mathematical Spatial Ability in Geometry Concept. Edumatica : Jurnal Pendidikan Matematika, 12(01), 30–40. https://doi.org/10.22437/edumatica.v12i01.17615 Yeh, Y.-F., Chan, K. K. H., & Hsu, Y.-S. (2021). Toward a framework that connects individual TPACK and collective TPACK: A systematic review of TPACK studies investigating teacher collaborative discourse in the learning by design process. Computers & Education, 171, 104238. https://doi.org/10.1016/j.compedu.2021.104238
Analisis Efektivitas Algoritma Gauss-Jordan Dan Kofaktor-Adjoint Menggunakan Aplikasi Pembanding C++ (Studi Kasus NaKeiZa Cookies) Naswa Melani; Najwa Ayumi Ningrum; Ita Margaretta Br Tarigan
JURNAL JENDELA MATEMATIKA Vol. 4 No. 02 (2026): Jurnal Jendela Matematika: Edisi Juli 2026
Publisher : CV. Jendela Edukasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57008/jjm.v4i02.3227

Abstract

Perkembangan teknologi informasi mendorong pemanfaatan algoritma komputasi yang efisien dalam pengolahan data, termasuk pada usaha mikro, kecil, dan menengah (UMKM). Salah satu operasi penting dalam komputasi numerik adalah pencarian invers matriks yang digunakan untuk menyelesaikan sistem persamaan linear dan berbagai permasalahan analisis data. Penelitian ini bertujuan untuk menganalisis efektivitas algoritma Gauss-Jordan dan Kofaktor-Adjoint dalam menentukan invers matriks menggunakan aplikasi pembanding berbasis C++ dengan studi kasus pada usaha kue lebaran NaKeiZa Cookies. Metode penelitian yang digunakan adalah eksperimen kuantitatif dengan membandingkan kedua algoritma pada matriks berordo 2×2 hingga 10×10 yang merepresentasikan data produksi, persediaan bahan baku, dan penjualan. Parameter yang dianalisis meliputi waktu eksekusi, akurasi hasil, serta kompleksitas algoritma. Hasil penelitian menunjukkan bahwa algoritma Gauss-Jordan memiliki performa yang lebih baik dibandingkan metode Kofaktor-Adjoint. Waktu komputasi algoritma Gauss-Jordan cenderung lebih cepat dan stabil, terutama pada matriks berukuran besar, karena proses perhitungannya tidak memerlukan pencarian determinan dan kofaktor secara berulang. Sementara itu, metode Kofaktor-Adjoint menghasilkan akurasi yang sama, tetapi membutuhkan waktu pemrosesan yang lebih lama seiring bertambahnya ukuran matriks. Berdasarkan hasil pengujian, algoritma Gauss-Jordan lebih efektif diterapkan dalam aplikasi pengolahan data usaha NaKeiZa Cookies karena mampu memberikan hasil yang akurat dengan efisiensi waktu yang lebih tinggi. Penelitian ini diharapkan dapat menjadi referensi dalam pemilihan algoritma invers matriks untuk pengembangan aplikasi komputasi numerik dan sistem informasi bisnis.
Analisis Akurasi Dan Efisiensi Metode Matriks Invers Dalam Penyelesaian Sistem Persamaan Linear Menggunakan Aplikasi Matlab (Studi Kasus: Produksi Hannasa Cake & Dessert) Nayla Amelia Amanda; Mukhlis Afandi; Ita Margaretta Br Tarigan
JURNAL JENDELA MATEMATIKA Vol. 4 No. 02 (2026): Jurnal Jendela Matematika: Edisi Juli 2026
Publisher : CV. Jendela Edukasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57008/jjm.v4i02.3305

Abstract

Sistem persamaan linear merupakan salah satu konsep penting dalam aljabar linear yang banyak diterapkan pada berbagai bidang, seperti pendidikan, teknik, ekonomi, dan industri. Salah satu metode yang dapat digunakan untuk menyelesaikan sistem persamaan linear adalah metode matriks invers. Seiring perkembangan teknologi komputasi, penggunaan perangkat lunak MATLAB semakin banyak dimanfaatkan untuk membantu proses perhitungan numerik karena mampu menghasilkan solusi secara cepat dan akurat. Penelitian ini bertujuan untuk menganalisis tingkat akurasi dan efisiensi metode matriks invers dalam penyelesaian sistem persamaan linear menggunakan aplikasi MATLAB dengan studi kasus pada data produksi Hannasa Cake & Dessert. Penelitian menggunakan pendekatan kuantitatif dengan metode eksperimen melalui pengujian beberapa data produksi yang direpresentasikan ke dalam bentuk sistem persamaan linear. Analisis dilakukan dengan membandingkan hasil penyelesaian menggunakan metode matriks invers dan implementasinya pada MATLAB berdasarkan ketepatan hasil serta waktu komputasi yang dibutuhkan. Hasil penelitian menunjukkan bahwa metode matriks invers mampu menghasilkan solusi yang akurat selama matriks koefisien memiliki determinan tidak sama dengan nol. Selain itu, penggunaan MATLAB terbukti meningkatkan efisiensi proses penyelesaian karena dapat mempercepat perhitungan dan mengurangi kemungkinan terjadinya kesalahan manual. Berdasarkan hasil analisis, metode matriks invers yang diimplementasikan menggunakan MATLAB dapat dijadikan alternatif yang efektif dalam menyelesaikan sistem persamaan linear yang berkaitan dengan data produksi Hannasa Cake & Dessert. Penelitian ini diharapkan dapat menjadi referensi dalam pemanfaatan teknologi komputasi untuk mendukung pengolahan data dan pengambilan keputusan berbasis matematika.
Analisis Perbandingan Hasil Integrasi Numerik Menggunakan Kaidah Trapesium dan Kaidah Titik Tengah Elsafina Chintya Silitonga; Bukhari Bukhari; Ita Margaretta Br Tarigan
JURNAL JENDELA MATEMATIKA Vol. 4 No. 02 (2026): Jurnal Jendela Matematika: Edisi Juli 2026
Publisher : CV. Jendela Edukasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57008/jjm.v4i02.3315

Abstract

Integrasi numerik merupakan salah satu teknik komputasi yang banyak digunakan untuk memperoleh nilai hampiran suatu integral tentu ketika penyelesaian secara analitik sulit ataupun tidak memungkinkan dilakukan. Dua metode yang sering digunakan dalam integrasi numerik adalah Kaidah Trapesium dan Kaidah Titik Tengah. Kedua metode tersebut termasuk ke dalam keluarga rumus Newton-Cotes yang memiliki karakteristik pendekatan dan tingkat ketelitian yang berbeda bergantung pada bentuk fungsi yang dihitung. Penelitian ini bertujuan untuk menganalisis serta membandingkan hasil integrasi numerik menggunakan Kaidah Trapesium dan Kaidah Titik Tengah pada dua fungsi matematika yang berbeda. Penelitian dilakukan menggunakan pendekatan kuantitatif deskriptif melalui proses perhitungan numerik, kemudian hasil pendekatan dibandingkan dengan nilai eksak integral. Tingkat ketelitian dianalisis menggunakan galat absolut dan galat relatif. Hasil penelitian menunjukkan bahwa kedua metode mampu menghasilkan pendekatan yang mendekati nilai eksak. Akan tetapi, Kaidah Titik Tengah memberikan tingkat akurasi yang lebih tinggi dibandingkan Kaidah Trapesium pada kedua kasus pengujian karena menghasilkan nilai galat yang lebih kecil. Hasil penelitian ini menunjukkan bahwa pemilihan metode integrasi numerik berpengaruh terhadap kualitas pendekatan integral serta efisiensi komputasi.
Co-Authors Alzahra, Kayla Meyva Amelia Novita Sari Br Perangin Angin Arimby, Kenny ASPRINA BR SURBAKTI Br Surbakti , Asprina Br Tarigan, Siti Jamilah Bukhari Bukhari Citra Aulia David Jumpa Malem Sembiring Delima Astuti Rambe Desi Dwi Anggita Ramanda Ella Andini Br Ginting Elsafina Chintya Silitonga Fahrunnisa, Fahrunnisa Ginting, Puspita Sari Br Husna Juli Gulvira Indi, Galang Jedrian Kaban, Roberto Kaila Intan Natasa Kitu Gea Meiliyani Br Ginting Meiliyani Br Ginting, Meiliyani Br Melia Pradita Muhammad Ilham Siregar Muhammad Wahyu, Muhammad Mukhlis Afandi Mutiara Damarani Najwa Ayumi Ningrum Naswa Melani Nayla Amelia Amanda Nirwan Sinuhaji Nurhafiz Ahmad Rangkuti Pargaulan Siagian Polin Ramles Puji Asmaul Chusna Puji Asmaul Chusna Raheliya Br Ginting, Raheliya Br Ranti Ayunda Rasme Kita Kaban Ratna Anzani Rika Wulandari Rio Gunawan Riska Andian Turnip Roberto Kaban Roberto Kaban Seila Kartika Sembiring, David JM Simanjorang, Mangaratua M Sinuhaji, Nirwan Sinulingga, Moja Syahfitri Siregar, Desi Nuri Anggita Siti Jamilah Br. Tarigan Siti Jamilah Br. Tarigan Sumarlin Tarigan, Siti Jamilah Br Umara, Umi Wahyu Purwandari Wahyu Purwandari Yoga Pramadio Purba