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2.029  Articles
1 of 204 pages  |  10  records  |  more records»
In this paper, we present techniques for ellipsoid fitting which are based on minimizing the sum of the squares of the geometric distances between the data and the ellipsoid. The literature often uses “orthogonal fitting” in place of “geometric fitting” o... see more

Data from stem analysis of 56 dominant trees of Quercus pyrenaica Willd., in natural stands in Galicia (NW Iberian Peninsula), were used to evaluate four dynamic site equations derived with the Generalized Algebraic Difference Approach (GADA). All the equ... see more

Algebraic thinking has the important role to improve the students' understanding in solving real-world problems, especially in algebraic forms. The aim of this study is to explore the students' algebraic thinking in terms of intuitive cognitive style. Thi... see more

Background: Several studies have shown that many preservice teachers (PTs) who teach in the early years have a superficial knowledge about repeating patterns (RPs), which affects their knowledge about children’s algebraic thinking. Objective: This article... see more

The second smallest eigenvalue of the Laplacian matrix of a graph G is called the algebraic connectivity and denoted by a(G). We prove thata(G)>p2/3(p(12g(n1, n2, …, np)2 - p2)/4g(n1, n2, …, np)4 + 4(q - p)(3g(np + 1, np + 2, …, nq)2 - p... see more

The study of differential-algebraic boundary value problems was initiated in the works of K. Weierstrass, N. N. Luzin and F. R. Gantmacher. Systematic study of differential-algebraic boundary value problems is devoted to the work of S. Campbell, Yu. E. Bo... see more

Critical Thinking (CT) ability is an essential skill needed in the 21st century. However, this skill is still under-explored by paying attention to the tendency of Learning Styles (LS) students when online learning is carried out. Therefore, this study ai... see more

Prospective mathematics teachers experience errors in solving straight-line equations, such as using unorthodox methods, answers that conflict with concepts and wrong calculations. This study aimed to analyze the difficulties of prospective mathematics te... see more

The aim of the research is to identify the effectiveness of using a proposed strategy according to the (Marquqrd) model in the algebraic thinking skills of second-grade intermediate students in the schools of the General Directorate of Education in Babylo... see more

1 of 204 pages  |  10  records  |  more records»