Shift rule
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The shift rule is a mathematical rule for
sequence In mathematics, a sequence is an enumerated collection of objects in which repetitions are allowed and order matters. Like a set, it contains members (also called ''elements'', or ''terms''). The number of elements (possibly infinite) is calle ...
s and
series Series may refer to: People with the name * Caroline Series (born 1951), English mathematician, daughter of George Series * George Series (1920–1995), English physicist Arts, entertainment, and media Music * Series, the ordered sets used in ...
. Here n and N are natural numbers. For sequences, the rule states that if (a_) is a sequence, then it
converge Converge may refer to: * Converge (band), American hardcore punk band * Converge (Baptist denomination), American national evangelical Baptist body * Limit (mathematics) * Converge ICT, internet service provider in the Philippines *CONVERGE CFD s ...
s if and only if (a_) also converges, and in this case both sequences always converge to the same number. For series, the rule states that the series \sum\limits_^\infty a_ converges to a number if and only if \sum\limits_^\infty a_ converges..


References

{{DEFAULTSORT:Shift Rule Sequences and series