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CAUCHY: Jurnal Matematika Murni dan Aplikasi
Published by Universitas Islam Negeri Maulana Malik Ibrahim Malang
ISSN : 20860382     EISSN : 24773344     DOI : 10.18860
Core Subject : Education,
Mathematics
Jurnal CAUCHY secara berkala terbit dua (2) kali dalam setahun. Redaksi menerima tulisan ilmiah hasil penelitian, kajian kepustakaan, analisis dan pemecahan permasalahan di bidang Matematika (Aljabar, Analisis, Statistika, Komputasi, dan Terapan). Naskah yang diterima akan dikilas (review) oleh Mitra Bestari (reviewer) untuk dinilai substansi kelayakan naskah. Redaksi berhak mengedit naskah sejauh tidak mengubah substansi inti, hal ini dimaksudkan untuk keseragaman format dan gaya penulisan.
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Articles 7 Documents
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Search results for , issue "Vol 1, No 2 (2010): CAUCHY" : 7 Documents clear
Aplikasi Program Dinamik pada Metode Pelaksanaan Pengecoran Plat Lantai Sedayu, Agung
CAUCHY Vol 1, No 2 (2010): CAUCHY
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (217.256 KB) | DOI: 10.18860/ca.v1i2.1703

Abstract

The development of world construction projects at this time that established by widespread methods of physical implementation which more excellent and sophisticated. The contractors are competing to obtain optimum results, and reduce losses more lower. The results obtained should not give benefit one person only, the other one should not to lose and suffer. Islam guides human how they work give benefit to their own and others. Many methods, equipment, and expertise deployed by the contractor for their work more optimal, one method for optimizing the physical implementation of the project is Dynamic Programming. Dynamic Programming to solve the problem optimization is not only with one step, but the events that took place linked to each other. Case study in this paper is the application of dynamic programming of implementation method of concrete casting on floor slab of Green House building, it’s belongs to Department of Biology, UIN Maliki Malang with backward induction phase. In modern century as this era has many fast-growing method of implementation that are categorized as advanced, but the problem that the methods actually optimal in terms of cost and time, due to cost and time parameters are very important in the progress of construction projects. The methods is very sophisticated so make project to be done very fast but it is very expensive financing, or the method is still conventional and traditional so that project costs will be reduced as cheaply, but the project need long time to be finished. Where is the decision that one will be expected to demand that we use what method. Mathematical formulas of dynamic programming as recursive equation with change big problem into smaller sub-problems, so the completion of smaller problems will be found solving of the original problem. Optimization process in this case that slab casting which solved in two methods, manually calculations with a recursive formula and use software DS Win 2.0. Optimization result of the two method are compared, and the two method produce similar results. Optimal or not parameter of the two method is optimum time and cost.
Identifikasi Struktur Dependensi dengan Copula (Aplikasi pada Data Klimatologi) Salamah, Mutiah
CAUCHY Vol 1, No 2 (2010): CAUCHY
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (921.205 KB) | DOI: 10.18860/ca.v1i2.1704

Abstract

Paper ini mendiskusikan peranan copula dalam memodelkan struktur dependensi antara dua variabel iklim, yaitu kecepatan angin dan rata-rata tekanan udara permukaan laut. Kedua variabel iklim tersebut mempunyai distribusi marginal yang berbeda yang mana kecepatan angin tidak berdistribusi normaldengan kecenderungan heavy-tailed, sedangkan tekanan laut berdistribusi normal. Oleh karena itu dependensi keduanya tidak bisa diwakili dengan menggunakan korelasi Pearson. Masalah ini bisa diatasi dengan copula. Hasil analisis menunjukkan bahwa copula-t adalah model terbaik untuk menjelaskan struktur dependensi ataran kedua variabel yang dibahas.
Linieritas Integral Henstock-Pettis pada Ruang Euclide Rn Rahman, Hairur
CAUCHY Vol 1, No 2 (2010): CAUCHY
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (171.127 KB) | DOI: 10.18860/ca.v1i2.1705

Abstract

In this paper we study Henstock-Pettis integral on the Euclidean space â„œn. We discuss some properties Linear integrable
Membatasi k-Ketenggaan Simpul dalam Pembangkitan Random Graph Metode Erdos Royi untuk Meningkatkan Kinerja Komputasi Abidin, Zainal; Arifin, Agus Zainal
CAUCHY Vol 1, No 2 (2010): CAUCHY
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (425.536 KB) | DOI: 10.18860/ca.v1i2.1706

Abstract

Edges generation by random graph erdos-royi methods was needed high computation, it’s caused low performance. In fact, edge generation was used frequently with many nodes. this paper is described a node restriction by k-nearest neighbour on edge generation of random graph erdos royi method. Result of noderestriction by k-nearest neighbour can be reduced computation time.
Optimalisasi Reduksi Noise Menggunakan Chain-Code Termodifikasi pada Pendeteksian Wajah Rijal, Yusron
CAUCHY Vol 1, No 2 (2010): CAUCHY
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (803.632 KB) | DOI: 10.18860/ca.v1i2.1707

Abstract

Digital image face detection had been developing so much in this last decade. The searching for the best method is still walking until today. This face detection research is using color model based segmentation method combined with template matching. There are 4 main process in this research. First, motion detection is used to minimize the size of the image by subtracting image n with image n+m. Then, by using YCbCr color model based segmentation, the image is separated by skin color area and non-skin color area. Third, is to reduce the noise by using the blurring way and by filtering its wide. The last one is matching the area that last with template that has been prepared to detect which area is face. The result of the research, from 217 images and 10 videos , shows that this method reach up to 70,5% face detection accuration  procentage.
Pendekatan Cart untuk Mendapatkan Faktor yang Mempengaruhi Terjangkitnya Penyakit Demam Tifoid di Aceh Utara Yuanita, Dina; Akbar, Muhammad Sjahid; Harini, Sri
CAUCHY Vol 1, No 2 (2010): CAUCHY
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (266.537 KB) | DOI: 10.18860/ca.v1i2.1708

Abstract

Typhoid fever is a disease caused by Salmonella typhi bacteria. It is attack the digestive tract. Typhoid fever caused by poor sanitation and personal hygiene is not good. According to the Basic Health Research in 2007 showed that the prevalence of typhoid fever in Indonesia of 1.6%. NAD Province is hight typhoid fever prevalence(2,96 %). Because Having traced the biggest contributor was derived from NAD. Therefore, theresearch conducted to find factors that influence the outbreak of typhoid fever in NAD. research using the CART Method. The results of the analysis indicate that the main factor causing typhoid fever was drinking water reservoirs. The other factors are waste water reservoirs, the physical quality of drinking water, a habit washing hands with soap before eating, the bowel, the dump, gender, socioeconomic status, habits of washing hands with soap after defecation and health education.
Sebuah Telaah Elips dan Lingkaran Melalui Sebuah Pendekatan Aljabar Matriks Sagara, Rahmat
CAUCHY Vol 1, No 2 (2010): CAUCHY
Publisher : Mathematics Department, Maulana Malik Ibrahim State Islamic University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (136.652 KB) | DOI: 10.18860/ca.v1i2.1709

Abstract

In this article, ellipse and circle will be learnt in depth via matrix algebra approach. The discussion of the both is started from their classic definition continued by surveying ellipse in matrix form. During the survey, some properties about ellipse will be explained and also, the procedure in drawing the figures can be obtained geometrically using some aspect in geometry: rotation and translation. At the end of the discussion, the new definition of the figures is deduced. Both of them are defined as” a set of points in a plane that are the same distance from a fixed point” but in different point of view about the ‘distance’. The ‘distance’ in the definition is derived from different norm definition. The difference lies on the positive definite matrix used in the norm definition. Base on the new definition, we’ll have the conclusion that circle is a special type of ellipse.

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