منابع مشابه
TECHNICAL NOTES AND SHORT PAPERS Skip-Term Summation of Sequences
The literature on the summation of sequences and the finding of the sums of the corresponding series is voluminous and well known. For rapidly convergent sequences term-by-term evaluations furnish no great obstacle. Likewise, if the sequence can be matched with a sequence whose sum is known and the term-byterm difference of the two sequences converges rapidly, this difference-sequence can be ev...
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Based on constant term evaluation, we present a new method to compute a closed form of the summation ∑n−1 k=0 ∏r j=1 Fj(ajn+bjk+cj), where {Fj(k)} are C-finite sequences and aj and aj+bj are nonnegative integers. Our algorithm is much faster than that of Greene and Wilf. Résumé. En s’appuyant sur l’évaluation de termes constants, nous présentons une nouvelle méthode pour calculer une forme clos...
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in which each {Fi(n)} is a sequence that satisfies a linear recurrence of degree D(i) < ∞, with constant coefficients. We assume further that the ai’s and the ai + bi’s are all nonnegative integers. We prove that such a sum always has a closed form, in the sense that it evaluates to a linear combination of a finite set of monomials in the values of the sequences {Fi(n)} with coefficients that a...
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Human eating behaviors are often nonhomeostatic, and thus unlike homeostatic behaviors, they are not exclusively reliant on rigid brain mechanisms, but heavily depend on psychological, sociocultural, and educational factors as well. A clear understanding of the mechanisms and consequences of various eating behaviors is necessary for giving comprehensive educational guidance. However, recommenda...
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از گذشته تا کنون، تحقیقات بسیاری صورت گرفته است که همگی به گونه ای بر مثمر ثمر بودن استفاده از استراتژی های یادگیری لغت در یک زبان بیگانه اذعان داشته اند. این تحقیق به بررسی تاثیر دو روش مختلف آموزش واژگان انگلیسی (کلیدی و بافتی) بر تلفظ و دانش لغوی فراگیران ایرانی زیر متوسط زبان انگلیسی و بر ماندگاری آن در حافظه می پردازد. به این منظور، تعداد شصت نفر از زبان آموزان ایرانی هشت تا چهارده ساله با...
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ژورنال
عنوان ژورنال: Mathematics of Computation
سال: 1959
ISSN: 0025-5718
DOI: 10.1090/s0025-5718-59-99263-4