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Diff — Geometric progression

Revision #1263 → #2034 · back to history

modifiedLinear recurrence relation7e220fdca2d9
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mathlib.moduleMathlib.Algebra.GroupPower.BasicMathlib.Algebra.Group.Defs
modifiedSign behavior with positive ratiof1822b3aee90
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mathlib.moduleMathlib.Algebra.Order.Ring.LemmasMathlib.Algebra.Order.GroupWithZero.Basic
modifiedConstant magnitude when |r| = 1be9597d782de
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mathlib.moduleMathlib.Analysis.Normed.Field.BasicMathlib.Analysis.Normed.Ring.Basic
modifiedCorrespondence with arithmetic sumc276c5e0dd7b
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mathlib.declFinset.sum_range_id
mathlib.match_kindgeneralization
mathlib.moduleMathlib.Algebra.BigOperators.Intervals
noteMathlib does not contain the analogy between the geometric product and the arithmetic sum stated in terms of means.The arithmetic-sum identity used here (sum equals count times average of endpoints) is captured in Mathlib via `Finset.sum_range_id` and related arithmetic-sum lemmas, but the explicit analogy with the geometric product is not stated.
provenanceaiai-moderated
statusnot_formalizedpartial
addedGeneral form a·r^nc0d1431f8e1a
addedExponential vs linear growthb049e23afdc8