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1 Scope of the Chapter This chapter is concerned with the provision of some commonly occurring physical and mathematical functions. The majority of the routines in this chapter approximate real-valued functions of a single real argument, and the techniques involved are described in Section 2.1. In addition the chapter contains routines for elliptic integrals (see Section 2.2), Bessel and Airy f...

let x be a random variable from a normal distribution with unknown mean θ and known variance σ2. in many practical situations, θ is known in advance to lie in an interval, say [−m,m], for some m > 0. as the usual estimator of θ, i.e., x under the linex loss function is inadmissible, finding some competitors for x becomes worthwhile. the only study in the literature considered the problem of min...

This paper uses a data mining approach to the prediction of corporate failure. Initially, we use four single classi®ers Ð discriminant analysis, logistic regression, neural networks and C5.0 Ð each based on two feature selection methods for predicting corporate failure. Of the two feature selection methods Ð human judgement based on ®nancial theory and ANOVA statistical method Ð we found the AN...

This paper establishes a systematic approach to solve the L1 l1 ð Þ and L2 l2 ð Þ semi-global stabilization problem of linear periodic systems with controls having bounded magnitude and energy, respectively. The developed approach will be referred to as L1 l1 ð Þ and L2 l2 ð Þ low gain feedback. Definitions, properties, and characterizations of this new concept are also provided, and particular...

in this paper, we propose a novel algorithm to enhance the noisy speech in the framework of dual-channel speech enhancement. the new method is a hybrid optimization algorithm, which employs the  combination of  the  conventional θ-pso and the shuffled sub-swarms particle optimization (sspso) technique. it is known that the θ-pso algorithm has better optimization performance than standard pso al...

Ñ State of the Art of Multi-Dimensional Modeling of Engine Reacting Flows Ñ An overview is provided of the state of art and future prospects for the use of CFD simulation in engine analysis and design. The aspects covered include geometry handling and mesh generation, numerical solvers, mathematical modeling of key physical phenomena, exploitation of parallel computers and industrial applicatio...