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summation    音标拼音: [səm'eʃən]
n. 总和,和,合计

总和,和,合计

summation
总和 求和

summation
n 1: a concluding summary (as in presenting a case before a law
court) [synonym: {summation}, {summing up}, {rundown}]
2: (physiology) the process whereby multiple stimuli can produce
a response (in a muscle or nerve or other part) that one
stimulus alone does not produce
3: the final aggregate; "the sum of all our troubles did not
equal the misery they suffered" [synonym: {sum}, {summation},
{sum total}]
4: the arithmetic operation of summing; calculating the sum of
two or more numbers; "the summation of four and three gives
seven"; "four plus three equals seven" [synonym: {summation},
{addition}, {plus}]

Summation \Sum*ma"tion\, n. [Cf. F. sommation. See {Sum}, v. t.]
The act of summing, or forming a sum, or total amount; also,
an aggregate.
[1913 Webster]

Of this series no summation is possible to a finite
intellect. --De Quincey.
[1913 Webster]

77 Moby Thesaurus words for "summation":
abbreviation, abridgment, abstract, account, accounts, addend,
aggregate, amount, apocope, argument, body count, box score,
capitulation, cast, census, compression, condensation, conspectus,
core, count, curtailment, difference, elision, ellipsis, epitome,
essence, evidence, foreshortening, gist, head count, inventory,
main point, meat, nose count, number, pith, plus, plus sign,
precis, product, quantity, recap, recapitulation, reckoning,
recount, recounting, reduction, rehearsal, repertory, resume,
retrenchment, run-through, rundown, score, shortening, statement,
substance, subtotal, sum, sum and substance, summary, summing,
summing up, summing-up, syncope, synopsis, tale, tally,
telescoping, testimony, the bottom line, the story,
the whole story, total, truncation, whole, x number


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  • Summation - Wikipedia
    An explanation of the sigma (Σ) summation notation Mathematical notation uses a symbol that compactly represents summation of many similar terms: the summation symbol, , an enlarged form of the upright capital Greek letter sigma [1] This is defined as where i is the "index of summation" or "dummy variable", [2] ai is an indexed variable representing each term of the sum; m is the "lower
  • Summation Formulas - What Are Summation Formulas? Examples - Cuemath
    The summation formulas are used to find the sum of any specific sequence without finding the sum manually Understand the summation formulas with derivation, examples, and FAQs
  • Summation Symbol (∑)
    In math, the summation symbol (∑) is used to denote the summation operation, which is a way of expressing the addition of a sequence of terms
  • Summation notation (also called sigma notation) (article) - Khan Academy
    We can describe sums with multiple terms using the sigma operator, Σ Learn how to evaluate sums written this way
  • Sum of n, n², or n³ | Brilliant Math Science Wiki
    The series ∑ k = 1 n k a = 1 a + 2 a + 3 a + + n a k=1∑n ka = 1a +2a +3a +⋯ +na gives the sum of the a th ath powers of the first n n positive numbers, where a a and n n are positive integers Each of these series can be calculated through a closed-form formula The case a = 1, n = 100 a = 1,n = 100 is famously said to have been solved by Gauss as a young schoolboy: given the tedious
  • SUMMATION Definition Meaning - Merriam-Webster
    The meaning of SUMMATION is the act or process of forming a sum : addition How to use summation in a sentence
  • 6. 4: Summations and Series - Mathematics LibreTexts
    Using Summation Notation To find the total amount of money in the college fund and the sum of the amounts deposited, we need to add the amounts deposited each month and the amounts earned monthly The sum of the terms of a sequence is called a series Consider, for example, the following series
  • Summation - Math. net
    Summation In general, summation refers to the addition of a sequence of any kind of number The summation of infinite sequences is called a series, and involves the use of the concept of limits
  • Summation (Sigma, ∑) Notation Calculator - Good Calculators
    Summation notation represents an accurate and useful method of representing long sums For example, you may wish to sum a series of terms in which the numbers involved exhibit a clear pattern, as follows:
  • Summation - University of Pennsylvania
    We already briefly discussed sequences When working with sums and the "Sigma" notation for summations, you need to be able to write formulas for sequences you understand intuitively For example, if you want to write the sequence 7, 9, 11, 13, in the notation , {b n: n ≥ 1}, so that , b 1 = 7, b 2 = 9 and so on, one choice would be to say, Let {b n: n ≥ 1} be the sequence defined by b n





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