Browsing by Author "Lily, Endang"

Now showing 1 - 11 of 11
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    BENTUK NORMAL PADA PERSAMAAN PERMUKAAN KUBIK
    (2013-07-26) Fajri, Randi; Natsir, M.; Lily, Endang
    This paper discusses a technique to simplify a general cubic surface equation in the projective space to form a normal form z2=f(x,y) , in which f ( x, y) is a polynomial of degree four. The process is started by simplifying the cubic surface equation in the projective space into a cubic surfaces in an affine space, then followed by some tranformation to obtain an explicit and simpler form of a normal equation z2 = f(x,y).
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    FAKTORISASI POLINOMIAL ALJABAR DENGAN MENGGUNAKA METODE EUCLIDEAN DAN FAKTOR PERSEKUTUAN TERBESAR
    (2014-03-25) Oktafia, Rora; Gemawati, Sri; Lily, Endang
    This article discusses a factorization of algebraic polynomial of order n using the Euclidean method and the greatest common factor. The new polynomial is equivalent to the original polynomial. The new polynomial is formed by multiplication of the roots of the original polynomial.
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    METODE ITERASI VARIASIONAL HE UNTUK MENYELESAIKAN PERSAMAAN INTEGRAL VOLTERRA-FREDHOLM NONLINEAR
    (2016-02-04) Arwannur, Istawi; Lily, Endang
    This article discusses the application of He’s variational iteration method to solve a nonlinear Volterra-Fredholm integral equation. The application process begins by converting the equation to be solved to an equivalent of integro-differential equations, followed by forming a correction functions of He’s variational iteration method for the integro-differential equation. Then the iteration is performed to obtain the solution of the nonlinear Volterra-Fredholm integral equation. The theoretical study is applied to two examples of the nonlinear Volterra-Fredholm integral equation and the results obtained demonstrate the effectiveness of the discussed method
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    METODE TRANSFORMASI ELZAKI DALAM MENYELESAIKAN PERSAMAAN DIFERENSIAL BIASA LINEAR ORDE-N DENGAN KOEFISIEN KONSTANTA
    (2013-06-26) Nuari, Roki; Aziskhan; Lily, Endang
    This paper discusses ELzaki’s transformation and its properties for scalar, polynomial and exponential functions. Then this transformation is applied to solve an initial value problem of linear differential equations with a constant coefficient.
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    MODEL ECONOMIC PRODUCTION QUANTITY KETIKA TERJADI BARANG CACAT DAN KEKURANGAN STOK
    (2014-03-25) Siregar, Juliana; Lily, Endang; Gamal, M. D. H
    This paper discusses Economic Production Quantity (EPQ) model with defective items and shortage, which is a review from the article Krishnamoorthi & Panayappan [International Journal of Management Science and Engineering Management 7(3) (2012): 220-223]. EPQ model discussed is based on defective item condition when shortage is allowed. This model considers the cost incurred for meeting the demand and also considers the fixed time to place a product. Furthermore, a numerical example is given to explain the problem discussed
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    MODEL INVENTORI TINGKAT PERMINTAAN LINEAR, TINGKAT PRODUKSI TERBATAS DAN KEKURANGAN PERSEDIAAN YANG DIPENUHI SAAT PRODUKSI
    (2013-03-26) H, Roni Hasudungan; Nababan, T. P.; Lily, Endang
    This paper discussed about the formulation of the total cost of the average inventory on inventory models using linear functions, where the levels of demand and production are limited. In the model inventory, total cost of the average inventory was obtained from the derivatives of inventory model for time intervals to obtain the minimum value of an optimal solution at the time of production and on going demand. This paper is a review of the work done by C.K. Sahoo and S.K. Sahoo International Conference on Industrial Engineering and Operations Management, 2010
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    MODIFIKASI METODE DEKOMPOSISI ADOMIAN UNTUK MENYELESAIKAN PERSAMAAN GELOMBANG NONLINEAR
    (2014-03-25) Sari, Widiya Fitrina; Deswita, Leli; Lily, Endang
    This article discusses the modification of Adomian decomposition method to solve a nonlinear wave equation. Some numerical examples are used to show the effectiveness of the method. The numerical result show that the solution obtained through the modification of Adomian decomposition method is better than the solutions obtained using Adomian decomposition method.
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    MODIFIKASI METODE HUNGARIAN UNTUK PENYELESAIAN MASALAH PENUGASAN
    (2013-06-25) Idris; Lily, Endang; Sukamto
    This paper discusses a new method resulting from the Hungarian method modification to solve an assignment problem. This new method uses one of the basic properties of determinant to reduced the cost matrix in assignment problem to obtain the optimal solution. This method can be utilized for different types of assignment problem with minimize or maximize objective functions.
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    PENYELESAIAN PERSAMAAN DIFERENSIAL LANE-EMDEN MENGGUNAKAN METODE TRANSFORMASI DIFERENSIAL
    (2013-03-21) Sya’roni, Ahmad; Natsir, M.; Lily, Endang
    This paper described characteristics and use of differential transformation method. Finite Taylor series was used for solving second order of nonlinear Lane-Emden equation at singular initial value problems
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    PERENCANAAN DIET DIABETES NEFROPATI DENGAN PROGRAM GOL
    (2016-04-27) Muyasiroh, Nurul; Lily, Endang; Gamal, M. D. H
    This article discusses an application of goal programming in a real life case, that is a diet program for a diabetic nefropati patients. Dietitians usually use the food substitute list method in determining the amount of food recommended for the diabetic nefropati patients. A mathematical method that we use is goal programming. The computation of goal programming model is carried out using LINGO. The computational results are quite satisfactory since the amount of nutrients meet the amount of the standard diet.
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    SOLUSI NUMERIK PERSAMAAN INTEGRAL VOLTERRA-FREDHOLM NONLINEAR MENGGUNAKAN FUNGSI BASIS BARU
    (2016-04-27) Octary, Vanny; Lily, Endang
    This article discusses the numerical method to solve a nonlinear Volterra-Fredholm integral equation using a New Basis function obtained through a set of Block-Pulse functions (BPFs). The Use of the New Basis function produces a system of linear equations and the solution of this system is the solution for the nonlinear Volterra- Fredholm integral equation. Through two examples, it is seen that the discussed method provides close enough solutions to the exact solutions