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All Journal Al-MARSHAD: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan International Journal of Computing Science and Applied Mathematics-IJCSAM
Sausan, Rahma Dhiyaa
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Astronomy Education Mathematics

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The Implementation of Mathlak in Determining the Beginning of the Lunar Month of the Majelis Pengkajian Tauhid Tasawuf Indonesia (MPTT-I) Mustaqim, Riza Afrian; bin Adnan, Boihaqi; Khawatinnisa, Husnul; Hayana, Cut Diva; Sausan, Rahma Dhiyaa
Al-Marshad: Jurnal Astronomi Islam dan Ilmu-Ilmu Berkaitan Vol 10, No 2 (2024): Al-Marshad
Publisher : University of Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/jam.v10i2.21094

Abstract

Matlak in the determination of the beginning of the Kamariah month of the Majelis Pengkajian Tauhid Tasawuf Indonesia (MPTT-I) is often different from other methods. The conventional rukyat system and the limited scope of matlak are the causes of the dynamics, even in conditions of high hilal visibility differences still occur, the community is confused by this situation. This research is a qualitative research with a scientific approach. Data sources were obtained based on interviews, observation and documentation, with descriptive analysis. The results of this study indicate that; 1) The method of determining the beginning of the Kamariah Month of the Majelis Pengkajian Tauhid Tasawuf Indonesia (MPTT-I) uses conventional rukyatul hilal, with a limit of 32 minutes of sunrise-sunset distance, 2) The implementation of matlak in determining the beginning of the Kamariah Month of the Majelis Pengkajian Tauhid Tasawuf Indonesia (MPTT-I) on the Potential Differences in Fasting and Feast Days in Indonesia is very significant, the application of this matlak has an impact on the impossibility of unification. With the consequence that it will be absolutely different from some methods such as imkanurrukyat with existing criteria.
Cubic Spline Model for Kinematic Analysis of the Badminton Smash Movement Sausan, Rahma Dhiyaa; Munzir, Said; Halfiani, Vera; Ikhwan, Muhammad
(IJCSAM) International Journal of Computing Science and Applied Mathematics Vol. 11 No. 2 (2025)
Publisher : LPPM Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24775401.ijcsam.v11i2.4346

Abstract

Smash is one of the most complex movements in badminton. Along with its development, quantitative analysis is needed to obtain the best smash movement. This research aims to analyze the smash movement kinematically through mathe matical means. The data in this study are primarily obtained through recording and digitizing data on the smash movement of one Aceh Province badminton athlete. The method used to analyze the data is the cubic spline method. This research produces smash movement kinematic data and analysis of translational and angular curves obtained using a cubic spline interpolation approach for three-dimensional coordinates. The kinematic aspects consisted of body segment position, body segment velocity and acceleration, also angular velocity and acceleration. The conclusion of this research is analysis of the best movement pattern to perform smash in badminton athletes can be conducted by analyzing the translational and angular curves. Those curves obtained by using the cubic spline interpolation approach for position coordinates in three dimensional space.
Co-Authors Boihaqi bin Adnan Halfiani, Vera Hayana, Cut Diva Khawatinnisa, Husnul Muhammad Ikhwan Riza Afrian Mustaqim Said Munzir