5 articles for “differentiation formula”

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Research ArticleOpen accessIn the keywordsPassage to the Differences for the BDF's MethodsAbdelouahab SalmiIn this study, we give an improvement to the backward differentiation formula (BDF). We use a formula for the differences that permits us to determine the new coefficients αi^ and γi ^in function of the classical coefficients αi and γi of this method. Our proposed approach decreases the error and the cost of computation. Numerical results for concrete problems are … …Journal of Mathematics and Statistics, Vol. 2, Issue 3 · 30 Sep 2006 · 6,412 accessesView PDF Cite

Research ArticleOpen accessIn the keywordsA Recurrence Formula for Computing the Derivative of Composition of FunctionsA. A. TaaniA new recursion formula for computing the n-th derivative of the composition of two functions has been introduced in this contribution. The importance of this new formula is associated with its counterpart; Leibniz rule for finding the n-th derivative of the product of two functions. Furthermore the process of computing this formula has been presented in algorithmic format herein. …American Journal of Applied Sciences, Vol. 4, Issue 10 · 31 Oct 2007 · 7,097 accessesView PDF Cite

Research ArticleOpen accessIn the abstractSMEs Strategies to Improve the Competitiveness of Dairy Products in West Sumatra Province, IndonesiaRahmi Wati, Firwan Tan, Donard Games, Endrizal RidwanConsidered a side business, most dairy farms in Indonesia are small-scale farms with low productivity. Farmers tend to sell the milk produced in the form of fresh milk rather than processed products. This condition causes low competitiveness of dairy products and the difficulty of dairy products penetrating the modern market. This study aims to identify factors that determine competitiveness and … …American Journal of Animal and Veterinary Sciences, Vol. 18, Issue 2 · 28 Jun 2023 · 5,980 accessesView PDF Cite

Research ArticleOpen accessIn the abstractA Review of the Recent Advances Made in the Black-Scholes Models and Respective Solutions MethodsYasir Hamad Al Saedi, Gurudeo Anand TularamThe Black-Scholes model has been a major advance in finance over a period of time; this paper examines this model in some detail, in terms of the latest developments in both analytical and numerical solutions. The paper initially briefly examines historical aspects but quickly moves to a critical analysis of the works in the applications, solutions and implications for the … …Journal of Mathematics and Statistics, Vol. 14, Issue 1 · 8 Jan 2018 · 8,621 accessesView PDF Cite

Research ArticleOpen accessIn the abstractEvaluation of Acute-phase Reactants, Immunologic Markers and other Clinical and Laboratory Parameters in Patients with Pneumonia and Non-pneumonic Lower Respiratory Tract InfectionsJulio Collazos, María del Mar Martínez, Fernando IzquierdoMore efficacious tools to distinguish pneumonia from other acute lower respiratory tract infections (OALRTI) in facilities where radiologic studies are not easily or rapidly available are desirable to select the patients who should undergo chest radiographs, to avoid unnecessary visits to the emergency wards of hospitals and to optimize health resources. To this end we analyzed the relevance of many … …American Journal of Infectious Diseases, Vol. 3, Issue 1 · 31 Mar 2007 · 7,083 accessesView PDF Cite