In mathematics the basic operations are addition, subtraction, multiplication and division, a mathematical operator is symbol that used to indicate what operation be realized, for example, +, −, ×, ¸, so on. this article, I present procedure by which it possible reduce any natural number -even or odd, with without decimals-, one of first four odd numbers: 1, 3, 5, 7. suggest >n< reduction...

This study discusses some variants of Ordered WeightedAveraging (OWA) operators and related information aggregation methods. Indetail, we define the Extended Ordered Weighted Sum (EOWS) operator and theExtended Ordered Weighted Averaging (EOWA) operator, which are applied inscientometrics evaluation where the preference is over finitely manyrepresentative works. As...