نتایج جستجو برای: trapezoidal number
تعداد نتایج: 1171055 فیلتر نتایج به سال:
In this paper, an x n fully fuzzy linear system à ⊗ x = b where à is a fuzzy matrixx and b are fuzzy vectors with trapezoidal fuzzy numbers is solved by singular value decomposition method. The method is illustrated with numerical examples.
In the present paper, an inventory model without shortages has been considered in a fuzzy environment. Our goal is to determine the optimal total cost and the optimal order quantity for the proposed inventory model. The Trapezoidal fuzzy numbers have been introduced in order to achieve this goal. The computation of economic order quantity (EOQ) is carried out through defuzzification process by ...
We present a construction and basic properties of a class of continuous distributions of an arbitrary form defined on a compact (bounded) set by concatenating in a continuous manner three probability density functions with bounded support using a modified mixture technique. These three distributions may represent growth, stability and decline stages of a physical or mental phenomenon.
Fuzzy Newton-Cotes method for integration of fuzzy functions that was proposed by Ahmady in [1]. In this paper we construct error estimate of fuzzy Newton-Cotes method such as fuzzy Trapezoidal rule and fuzzy Simpson rule by using Taylor's series. The corresponding error terms are proven by two theorems. We prove that the fuzzy Trapezoidal rule is accurate for fuzzy polynomial of degree one and...
This paper proposes a new approach based on Bonferroni mean operator and possibility degree to solve fuzzy multi-attribute decision making (FMADM) problems in which the attribute value takes the form of interval type-2 fuzzy numbers. We introduce the concepts of interval possibility mean value and present a new method for calculating the possibility degree of two interval trapezoidal type-2 fuz...
this paper proposes a new mathematical model for the integrated procurement-production-distribution problem of a fuzzy mixed integer linear programming (fmilp) type. considering the uncertainty in real problems, a number of parameters such as demand, capacity, and cost where their values are not available or known precisely, have been considered as trapezoidal fuzzy numbers. to solve fuzzy mixe...
Risk management is a process aimed at enhancement, developing the level of security in an organization. It gives the organization a broad view of the risks that can affect its productivity and performance, and enables it to make appropriate risk management decisions. This paper presents a new fuzzy method for measuring risk element criticality in a fuzzy project network. There have been several...
This paper presents methods to calculate the 2D area (or the 3D volume) enclosed by a plane curve (or space surface) without analytical expression. One property of our methods is that the error of the measurement is proportional to the square of the measuring unit when the unit is small enough. Finally, w e p o i n t out a property common to calculating area and volume using the corresponding a...
has polynomial time complexity if the integers are supplied in unary radix. We show that if the input is supplied in binary (or higher) radix, then this problem is in #P and is actually the counting version of the Partition problem. We also state additional properties of the Partition problem following our analysis. In particular, we show that deciding whether definite integrals are zero or inf...
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