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# Browsing Mathematics by Issue Date

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• (2013-03-26)
We discussed the integrated optimization problem which is closely related to the issue of inventory and transportation problems. An alternative model called the model ITIO (Inventory-Transportation Integrated Optimization) ...
• (2013-03-26)
This paper discusses a new Iterative method for finding a root of a nonlinear equa- tion obtained by combining Newton, Cordero and Torregrosa, and Parhi and Gupta methods. It is shown analytically that the new iterative ...
• (2013-03-26)
A new algorithm of transportation that is more-for-less (MFL) algorithm has been used to solve transportation problems with mixed constraints. The proposed of this transportation problem is to determine how many product ...
• (2013-04-19)
This paper discusses a method developed by Yuan-Shyi Peter Chiu, Singa Wang Chiu and Hong-Dar Lin  to solve EPQ model with reworking process. During the reworking process, shortage is not allowed. Therefore the consument ...
• (2013-04-24)
This paper discusses Woolhouse’s formula developed from a book by Dickson, Hardy and Waters . Woolhouse’s formula derived from the Euler-Maclaurin formula approach. Woolhouse’s formula used to determine the cash value ...
• (2013-04-26)
This paper discusses the present value of a life annuity due for joint life with Gom- pertz distribution and Makeham distribution. With Gompertz distribution and Makeham distribution, the present value calculation is done ...
• (2013-04-29)
In this expository paper we discuss the solution of trapezoidal fuzzy linear system A~x =y with ~x and ~y which the vectors of trapezoidal fuzzy numbers developed from a paper by Nasseri and Gholami . The first step ...
• (2013-05-08)
This paper discusses how to solve the equation of fully fuzzy linear system A ~ x  b with A as n  n fuzzy matrix,x and b as n  1 fuzzy vectors, with A ~ x  b with A as n  n fuzzy matrix, ~ the elements which is ...
• (2013-05-08)
In this paper we discuss the characteristics of free semigroup and free monoid related to word set. The discussion begins with some homomorphism theorems and a criterion for freeness of semigroup and monoid. All characteristics ...
• (2013-05-15)
This paper discusses a new method to compute the determinant of a matrix of order 3  3 , i.e the determinant computation using three schemes formed by removal the elements of a matrix of order 3  3 . The schemes are ...
• (2013-05-20)
In this paper we solve fuzzy linear system of the form A x = y where A is a n x n nonsingular matrix, ~x is a fuzzy vector and ~y is a parameter fuzzy number. This fuzzy linear system is solved by expanding ~y into 8 ...
• (2013-05-24)
The strength and dependence between variables is a central problem that we want to know on a lot of research. At the time of perfectly correlation occurs sometimes in some cases the value of size is not reached  1 . In ...
• (2013-05-28)
We discuss a derivation of a high-order iterative method based on Taylor expansion of a nonlinear function. The method is a special case of the method derived by Germani, A., et al. in Journal of Optimization Theory and ...
• (2013-06-10)
We discuss an iterative method to solve a nonlinear equation, which is free from derivatives by approximating a derivative in the two-step Newton method by the method of undetermined coefficients and forward difference. ...
• (2013-06-10)
This paper discusses about the premium of endowment of life insurance with the last survivor status. It means life insurance of two persons who are x and y years old with the premium payed until the last death of insurance ...
• (2013-06-10)
This paper discusses the premium of reserve of life insurance based on premium sufficiency method for two persons, who are respectively x and y years old, joining term life insurance with joint life status. On this method, ...
• (2013-06-12)
This article discusses a constant force assumption which is used to determine prospective reserve of an endowment life insurance. The constant force assumption is a probability density function of exponential distribution, ...
• (2013-06-12)
This paper discusses normal pension fund insurance calculation using accrued benefit cost method, for a joint life status of two pension fund insurance clients. Pension premium and cash insurance value of the pension ...
• (2013-06-12)
This paper discusses Fisher’s formula derived from compounding interest rate’s formula. It is used to determine the predicted values of the interest rate which affected by the inflation rate. The accumulation cash flow can ...
• (2013-06-17)
This paper discusses how to solve second order linear ordinary differential equations with variable coefficients using ELzaki’s transformation method, Euler’s method and the method of variation of parameters. Then described ...