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All Journal Jurnal Pendidikan Matematika Jurnal Pendidikan Matematika dan IPA Tadris: Jurnal keguruan dan Ilmu Tarbiyah AL-TA´LIM JURNAL ILMIAH PENDIDIKAN FISIKA AL BIRUNI Indonesian Journal of Science and Technology Al-Jabar : Jurnal Pendidikan Matematika JMPM: Jurnal Matematika dan Pendidikan Matematika PRISMA Desimal: Jurnal Matematika MUST: Journal of Mathematics Education, Science and Technology Triple S (Journals of Mathematics Education) International Journal of Supply Chain Management Jurnal Pengabdian Magister Pendidikan IPA Al-Ta'lim Transformasi : Jurnal Pendidikan Matematika dan Matematika Sehat Rakyat: Jurnal Kesehatan Masyarakat Islamic Journal of Integrated Science Education Mathematics Education Journal
Muhamad Syazali
Universitas Pertahanan
Religion Agriculture, Biological Sciences & Forestry Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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Pengembangan Blog Sebagai Media Pembelajaran Matematika Nugroho, Aji Arif; Putra, Rizki Wahyu Yunian; Putra, Fredi Ganda; Syazali, Muhamad
Al-Jabar: Jurnal Pendidikan Matematika Vol 8 No 2 (2017): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v8i2.2028

Abstract

This study aims to test the feasibility of media-based learning Blog in learning mathematics on trigonometric subjects. This development research uses 8 stages from 10 stages of borg and gall method that are potential and problem, data collection, product design, product validation, product revision, product test, product revision and mass production. Learning media blogs are developed with the help of adobe flash which aims to provide some animation. This research was conducted in SMA Negeri 1 Batanghari class X students. The assessment instrument used was questionnaire of feasibility test by media expert, Expert of Material, and Questionnaire of student response. The results of the research are: 1) Based on the validation of material expert judgments obtained an average score of 4.65 is located in the category of "Very Good". Validation of expert media judgment obtained an average score of 4.35 in the category of "Very Good". Validation of the linguist's assessment obtained an average score of 4.5 that is in the category of "Very Good". In addition, the results of small-scale test responses of learners obtained a score of 4.23 on the criteria of "Very Good", and while on a large-scale test the learners' response to get an average score of 4, 19 is on the criteria of "Good". Thus it can be concluded learning media berbantuan blog is in good category and can be used in learning, especially on Trigonometry material.  
Implementation of interpolation method in reconstructing damaged satellite image caused by impulse noise Riawan Syahrul Haz, Habban; Abdurrazzaq, Achmad; Junoh, Ahmad Kadri bin; Syazali, Muhamad
Al-Jabar: Jurnal Pendidikan Matematika Vol 14 No 2 (2023): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v14i2.14069

Abstract

Background: Images are extensively utilized in fields such as engineering, health, and defense. During transmission, these images often lose quality due to noise interference.Aim: The primary objective of this study is to develop a method to effectively reduce salt and pepper noise, a common issue in image transmission, and restore images to their original state.Method: To achieve this, we propose using a numerical approach based on the interpolation method, specifically designed to address the noise reduction challenge.Result: Experimental application of the interpolation method on various images demonstrated that it significantly enhances the Peak Signal-to-Noise Ratio (PSNR) and Structural Similarity Index Measure (SSIM) values, especially for images with low to medium noise density.Conclusion: Compared to other methods, our interpolation-based approach shows superior performance in reducing salt and pepper noise in images, making it a promising solution for image restoration in various applications.
All solutions of consecutive natural numbers sum equation and their closed forms Al Hazmy, Sofihara; Alkahfi, Cahya; Syazali, Muhamad; Al Husein, Fulkan Kafilah
Al-Jabar: Jurnal Pendidikan Matematika Vol 16 No 1 (2025): Al-Jabar: Jurnal Pendidikan Matematika
Publisher : Universitas Islam Raden Intan Lampung, INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/ajpm.v16i1.24476

Abstract

Purpose: This study aims to find a closed-form solution for all ordered pairs of natural numbers (?,?) satisfying the consecutive natural number sum equation 1 + 2 + ⋯ + ? sama dengan (? + 1) + (? + 2) + ⋯ + ?. This research contributes to number theory, particularly in the context of Diophantine equations.Method: The problem is solved analytically using Pythagorean triple theory and Pell's Theorem, which provides a rigorous mathematical framework for deriving solutions.Findings: The study reveals that there are infinitely many ordered pairs (?,?) of natural numbers that satisfy the equation. Furthermore, the solutions can be expressed in closed-form expressions for (??,??), where ? anggota ?, as follows:and Additionally, the ratio ??/?? approaches 1/akar2 as ? tends to infinity.Significance: The closed-form solutions provided in this study not only enhance our understanding of the consecutive natural number sum equation but also open avenues for further research in number theory fields, especially involving Diophantine equations. The findings have potential applications in theoretical and applied mathematics.
Media Belajar Matematika Berbasis Multimedia Interaktif dengan Pendekatan Contextual Teaching and Learning Siamy, Lailatul; Farida, Farida; Syazali, Muhamad
Desimal: Jurnal Matematika Vol. 1 No. 1 (2018): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v1i1.1919

Abstract

The purpose of this study is to determine the response of students and the experts to multimedia-based interactive learning media with the approach of contextual teaching and learning (CTL) on wake-up space that has been developed. The method used in this research is 7 stages from 10 stages of development and development method from Borg and Gall which have been modified by sugiyono. The 7 stages are potential and problems, data collection, product design, product validation, design improvement, product testing and product revision. The instrument of data collection used is questionnaire of student response and material expert validation. Based on data analysis obtained from material experts and media experts stated that interactive multimedia-based learning media with contextual teaching and learning approach (CTL) is feasible to use, and data analysis obtained from students stated that interactive multimedia is very good. This means that interactive multimedia developed by researchers can be used as a learning resource for students of SMP / MTs class VIII
Fungsi Zeta Riemann Genap Menggunakan Bilangan Bernoulli Maulidi, Ikhsan; Apriliani, Vina; Syazali, Muhamad
Desimal: Jurnal Matematika Vol. 2 No. 1 (2019): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v2i1.3589

Abstract

In this article, we study about the value of Riemann Zeta Function for even numbers using Bernoulli number. First, we give some basic theory about Bernoulli number and Riemann Zeta function. The method that used in this research was literature study. From our analysis, we have a theorem to evaluate the value of Riemann Zeta function for the even numbers with its proving.
Curiosity and creative characters: The impact on students' numerical ability Rahmawati, Yasinta; Pradana, Kenny Candra; Novalia, Novalia; Rinaldi, Achi; Syazali, Muhamad
Desimal: Jurnal Matematika Vol. 4 No. 2 (2021): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v4i2.10182

Abstract

The study aims to determine the numerical ability improvement in terms of curiosity and creative character education. The study employs the descriptive quantitative method with survey techniques. The cluster random sampling technique selected 120 students from SMP Islam El-Syihab and MTSN 1 Bandar Lampung. Three classes were chosen from each school which consisted of the seventh, eighth, and ninth grades. Each class consisted of twenty students as the respondents. The analysis technique used was the multiple linear regression to investigate the effect of curiosity and creative characters on students' numerical abilities. The results showed that the curiosity character had a more significant influence on students’ numerical abilities (0.870 or 87%) than the creative character (0,294 or 29%).
Daily Profit Analysis: Daily Productivity Scheduling with Multiple Linear Regression Putra, Fredi Ganda; Syazali, Muhamad
Desimal: Jurnal Matematika Vol. 3 No. 3 (2020): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v3i3.11451

Abstract

The purpose of this study was to see which day factors (Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, Sunday) had the greatest impact on the net income of a store. The method used is a quantitative method using multiple linear analysis. The results show that Monday is the most influential on profits
SAVI and DLPS learning models on mathematical problem solving Syazali, Muhamad; Afandi, Kiki; Ramadhani, Rahmi
Desimal: Jurnal Matematika Vol. 5 No. 1 (2022): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v5i1.12810

Abstract

Problem-solving ability is an skills related to mathematical characteristics which instructors need to encourage educators to be able to solve problems. This process certainly uses the right learning model to reach the target in accordance with the curriculum. This study aims to compare the influence of Somatic, Auditory, Visualization, and Intellectually (SAVI) and Double-loop Problem-solving (DLPS) methods in influencing mathematical problem solving skills. This study uses quantitative types with data analysis techniques using the T test. The results of this study are that there is an average value in the SAVI learning model of 77.7 while the average value of the DLPS learning model is 77.3. The conclusion can be drawn that the SAVI and DLPS learning models have the same effect on problem solving skills. 
The optimal portfolio of islamic stocks using the markowitz and black-litterman models Azis, Irfani; Syazali, Muhamad; Manurung, Elise Nathalia
Desimal: Jurnal Matematika Vol. 6 No. 1 (2023): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v6i1.14499

Abstract

The portfolio with the best combination of profit and risk or the investor's choice is called the optimal portfolio. The Black-Litterman and Markowitz models were used to determine the optimal portfolio during the covid-19 pandemic. Sharia stock data, that is consistent with the Jakarta Islamic Index for the 2019-2021 period, is used in this research. The stock combination of the Markowitz model is better than the Black-Litterman model. The expected value of the portfolio obtained is 0.0066, which is greater than the risk-free asset return of 0.0011 on the day of broadcast. The portfolio risk of the Markowitz model is smaller than the Black-Litterman model, which are 0.0010972 and 0.0013917, respectively. so it can be said that the Markowitz model is better than the Black-Litterman model in the formation of a Sharia stock portfolio during the covid-19 pandemic.
The estimation of the hazard function of earthquakes in aceh province with likelihood approach Maulidi, Ikhsan; Novika, Fanny; Mahmudi, Mahmudi; Apriliani, Vina; Syazali, Muhamad
Desimal: Jurnal Matematika Vol. 7 No. 3 (2024): Desimal: Jurnal Matematika
Publisher : Universitas Islam Negeri Raden Intan Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/djm.v7i3.21489

Abstract

In this article, we propose a novel application of the single decrement method with a likelihood approach to estimate the hazard function of earthquake events in Aceh province. While this method has traditionally been used in actuarial sciences for mortality table estimation, its application in seismic hazard estimation represents a new perspective in the field of earthquake risk analysis. To enhance the accuracy of the model, we applied the Box-Cox transformation to normalize the data and used simple regression to formulate the hazard function. Our results demonstrate that a cubic equation provides a more accurate model compared to linear and quadratic equations, as evidenced by the lower Mean Square Error (MSE). This study offers a new approach to hazard rate estimation that surpasses conventional methods by providing more informative and interpretable results for earthquake risk assessment.
Co-Authors Abd. Rasyid Syamsuri Abdurahman Abdurrahman Abdurrazzaq, Achmad Achi Rinaldi Adi, Langit Cahya Afandi, Kiki Aji Arif Nugroho Al Husein, Fulkan Kafilah Alkahfi, Cahya Andika Eko Prasetiyo Andika Eko Prasetiyo, Andika Eko Antomi Saregar Avissa Purnama Yanti Avissa Purnama Yanti, Avissa Purnama Azis, Irfani Dewi, Eva Sima Dewi, Eva Sima Dian Purnama Sari Dian Purnamasari Elise Nathalia Manurung Endah Kinarya Palupi Fanny Novika Farid, Fajri Farida Farida Farida, Farida Fitria Lestari Fredi Ganda Putra Hasan Said Tortop Hasan Said Tortop Iip Sugiharta Ikhsan Maulidi Irfani Azis Irfani Azis Irzaman, Irzaman Jermsittiparsert, Kittisak Junoh, Ahmad Kadri bin Kenny Candra Pradana Kiki Afandi Kittisak Jermsittiparsert Kittisak Jermsittiparsert Lailatul Siamy Lestari, Bella Dwi Lestari, Bella Dwi Lintang Fitra Utami Lusi Anggraini Lusi Anggraini Mahmudi Mahmudi Manurung, Elise Nathalia Mardani, Lingga Afriansyah Mardani, Lingga Afriansyah Maskur, Ruhban Masykur, Rubhan Maulidi, Ikhsan Mohammad Liwa Ilhamdi Muawanah Muawanah Mujib Mujib Mujib Mujib, Mujib Nanang Supriadi Nilawati Tadjuddin Nina Valentika Nining Ratnasari Nofrizal Nofrizal Nofrizal Nofrizal Noura, Karim Novalia Novalia Novalia Novalia Nugroho, Aji Arif NUR HASANAH Nursyirwan , Vivi Iswanti Palupi, Endah Kinarya Raditya, Aji Rahmad Junaidi, Rahmad Rahmawati, Yasinta Rahmi Ramadhani Ratnasari, Nining Ratnasari, Nining Riawan Syahrul Haz, Habban Rizka Dwi Saputri Rizki Wahyu Yunian Putra Rizqi Prastowo Rofiqul Umam Ruhban Maskur Sakti Aktarim Siamy, Lailatul Siamy, Lailatul Siska Andriani Syamsul Huda Syamsul Huda Syarif Abdullah Tadjudin, Nilawati Tortop, Hasan Said Umi Azizatul Mubaroh Umi Azizatul Mubaroh, Umi Azizatul Venita Syavera Vina Apriliani Wahyudianto, Benny Watcharin Joemsittiprasert Yasinta Rahmawati Zakiy, Muhammad Abdurrahman