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Jurnal Fourier

FOURIER
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Published by Universitas Islam Negeri Sunan Kalijaga Yogyakarta

ISSN : - EISSN : - DOI : -

Core Subject : Economy, Science, Education,

Computer Science & IT Economics, Econometrics & Finance Education Mathematics

FOURIER adalah Jurnal Ilmiah bidang yang memadukan dan mengembangkan ilmu Matematika dan pembelajarannya yang diintegrasikan dan interkoneksikan dengan nilai-nilai keislaman terbit sejak tahun 2012 dengan frekuensi terbit 2 kali dalam setahun yang dengan bahasa utama (Bahasa Indonesia dan Bahasa Inggris) yang proses reviewernya sesuai dengan disiplin ilmunya (Analisis, Aljabar, Matematika Terapan, Statistika, dan Pendidikan Matematika).

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Articles 6 Documents

Search results for , issue "Vol. 2 No. 1 (2013)" : 6 Documents clear

Perbandingan Berbagai Model Conditionally Heteroscedastic Time Series Dalam Analisis Risiko Investasi Saham Syariah Dengan Metode Value At Risk Mohammad Farhan Qudratullah
Jurnal Fourier Vol. 2 No. 1 (2013)
Publisher : Program Studi Matematika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Value at Risk (VaR) is one of the tools recommended Bank Indonesia to gauge the risk of an investment, the VaR approach tends to be more associated with the conventional assumption of a normal distribution, while contemporary empirical findings indicate the existence of patterns of abnormality in the nature of statistical data, especially on financial data. Up to this time shares in the Jakarta Islamic Index (JII) is still heavily influenced by the dynamics of market volatility which one, so the necessary in-depth analysis to help investors make the right decisions in investing. This research addresses the issue of risk analysis model using the VaR approach using a variety of model Heterokedastic Timeseris Conditionals (CHT) and find the best model. As for the data used is the daily closing stock index data-Sharia stocks (JII) post-crisis global 2008 (January 2009 â€“ June 2011) and the software used is E-Views 5.1 and Excel 2007. The results obtained are of 16 (sixteen) model approach to VaR-CHT used, only 5 (five) a valid model on a confidence level of 99%, i.e. Approach (2.2) GARCH, GARCH M standard deviation GARCH (1,1), M Log (Variansi) (1,1), TARCH M Log (Variansi) (1,1), EGARCH and M Log (Variansi) (1,1). The VaR Model of the CHT are the best and recommended in analyzing the risks of stock investment is Shariah (JII) is a model that gives the value of the VaR model, i.e. the smallest VaR GARCH-M standard deviation (1,1) that gives the value of VaR is equal to 3.2396%.

Model Penyebaran Penyakit Polio Dengan Pengaruh Vaksinasi RR Laila Maâ€™rifatun; Sugiyanto Sugiyanto
Jurnal Fourier Vol. 2 No. 1 (2013)
Publisher : Program Studi Matematika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Polio (Poliomielitis) is an infectious disease caused by the polio virus. This disease attacks the entire body (including the muscles and nerves) and can lead to muscle weakness that is permanent, paralysis or death. This paper will discuss on the influence of vaccination against polio disease spread in the human population that settled in the form of mathematical modeling.

Rumus Indeks Ketidaknyamanan Suatu Wilayah Sugiasih Sugiasih
Jurnal Fourier Vol. 2 No. 1 (2013)
Publisher : Program Studi Matematika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Index of discomfort can be determined, this value is to accommodate everyone at level how humans are considered to be comfortable on a place. There are three who wrote formulas i.e., Discomfort Index (DI), temperature Humidity Index (THI) and Comfort Index (CI). In addition to air temperature, air humidity, wind speed there that affect the comfort of a place, such as the density of buildings, distance to the center of the industry, the distance to the center of the trade, the distance to the main street, the coverage of vegetation in the area of the settlements.

Peningkatan Peran Aktif Mahasiswa Pada Kalkulus Integral Menggunakan Metode Pembelajaran Kooperatif Tipe Student Teams-Achievement Division Sumargiyani Sumargiyani
Jurnal Fourier Vol. 2 No. 1 (2013)
Publisher : Program Studi Matematika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Problems in teaching integral calculus that requires attention in the motivation of learning alongside students is the active role of the student. The active role of the student during the teaching and learning process will affect on the results of his studies. As for the purpose of this research is to improve the students ' active role by using cooperative learning method type STAD. The subject of research as many as 20 students PGMIPA education courses Math UAD who take Courses Integral Calculus semester three academic year 2012/2013. The cycle is done as much as 3 times the cycle. Data collection is done using sheets of observation, interviewing, documentation, diagnostic tests and field notes. Furthermore the data analyzed by qualitative descriptive. Based on the results of data analysis revealed that the use of cooperative learning methods type STAD can enhance the active role of students in cycle I of 48.53% in category enough, cycle II increased by 59.21% in the category of pretty and cycle III increased by 71.76% in both categories.

Penyelesaian Persamaan Telegraph Dan Simulasinya Agus Miftakus Surur; Yudi Ari Adi; Sugiyanto Sugiyanto
Jurnal Fourier Vol. 2 No. 1 (2013)
Publisher : Program Studi Matematika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Equation Telegraph is one of type from wave equation. Solving of the wave equation obtainable by using Green's function with the method of boundary condition problem. This research aim to to show the process obtain;get the mathematical formula from wave equation and also know the form of solution of wave equation by using Green's function. Result of analysis indicate that the process get the mathematical formula from wave equation from applicable Green's function in equation which deal with the wave equation, that is applied in equation Telegraph. Solution started with searching public form from Green's function, hereinafter look for the solving of wave equation in Green's function. Application from the wave equation used to look for the solving of equation Telegraph. Result from equation Telegraph which have been obtained will be shown in the form of picture (knowable to simulasi) so that form of the the equation Telegraph.

Aplikasi Transformasi Laplace Pada Rangkaian Listrik Arifin Arifin; Muhammad Wakhid Musthofa; Sugiyanto Sugiyanto
Jurnal Fourier Vol. 2 No. 1 (2013)
Publisher : Program Studi Matematika Fakultas Sains dan Teknologi UIN Sunan Kalijaga Yogyakarta

Menyelesaikan persamaan diferensial sering terkendala oleh masalah syarat awal atau syarat batas. Masalah syarat batas ini sering dijumpai pada penerapan persamaan diferensial, salah satunya adalah rangkaian listrik. Metode yang dapat digunakan untuk menyelesaikan masalah syarat batas pada persamaan diferensial salah satu diantaranya adalah metode transformasi Laplace. Transformasi Laplace yang didefinisikan dengan L{f(t)}= dapat digunakan untuk mencari solusi dari suatu sistem persamaan diferensial koefisien konstan. Metode penyelesaian suatu rangkaian Listrik dengan menggunakan transformasi Laplace adalah dengan mengubah persamaan diferensial dari domain waktu (t) ke dalam domain frekuensi (s), memetakan masalah nilai awal ke dalam persamaan pembantu, menyelesaikan dengan perhitungan aljabar, dan menggunakan invers transformasi Laplace untuk mendapatkan solusi khusus secara langsung dari sistem persamaan diferensial rangkaian listrik tersebut.

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Kab. sleman,

Daerah istimewa yogyakarta

INDONESIA