sum

     

Summation is the adition of a set of numbers; the result is their sum or total. The "numbers" to be summed may be natural numbers, complex numbers, matrices, or still more complicated objects. An infinite sum is a subtle procedure known as a series. Note that the term summation has a special meaning in the context of divergent series related to extrapolation.

Trivia about sum

  • For 5 & 7 it's 12
  • The integral symbol seen here, created by Leibniz, is a stylized "S" standing for this word
  • Descartes thought therefore he knew this first person singular form of the verb "to be"
  • The verb "to be" has est as third person singular & this as first person singular

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