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summation

UK/sʌˈmeɪʃən/
nounC1Occasional — familiar, but not everyday · #9,802 of 15,258leans written

Other forms: summations

A summation is a summing up of everything that has been said. The closing summation, a fair summation, in summation.

In American courts it is the closing speech to the jury, which Britain calls the closing submission. In mathematics it is simply the operation of adding a series, written with a capital sigma.

Definitions of summation

  1. 1nounsummationA summing up of everything that has been said.C1

    “At the end of the meeting, the chairman gave a brief summation of what had been agreed.”

summation is a summary.

Where it comes from

  1. Latin

    summa — highest point; sum

  2. Old French

    summe

  3. Middle English

    summe

  4. English

    sum

  5. English, today

    summation

Built from

  • summus · Latin — highest

From sum + -ation. sum comes from Middle English summe, from Old French summe, from Latin summa (“highest point; sum”), from summus (“highest”).

Etymology from Wiktionary, CC BY-SA

Practise this word

summation in the wild

  • In mathematics, summation is the addition of a sequence of numbers, called addends or summands; the result is their sum or total.

    Summation

  • For simple patterns, summation of long sequences may be represented with most summands replaced by ellipses.

    Summation

  • Ewald summation is a special case of the Poisson summation formula, replacing the summation of interaction energies in real space with an equivalent summation in Fourier space.

    Ewald summation

  • Depending on the sum total of many individual inputs, summation may or may not reach the threshold voltage to trigger an action potential.

    Summation (neurophysiology)

  • The periodic summation of a Dirac delta function is the Dirac comb.

    Periodic summation

From Wikipedia, CC BY-SA 4.0. These sentences were written by other people about their own subjects; they are here to show the word at work, not as anybody’s opinion.

Related words

the summe family

sum

summation — used about once every 5,163 pages · #9,802 · point at the bar for the others