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In 1755, the summation symbol Σ is attested in Leonhard Euler's Institutiones calculi differentialis. [8] [9] Euler uses the symbol in expressions like: (+) = In 1772, usage of Σ and Σ n is attested by Lagrange. [8] [10] In 1823, the capital letter S is attested as a summation symbol for series. This usage was apparently widespread.
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. This is defined as = a i = a m + a m + 1 + a m + 2 + ... + a n - 1 + a n
For most symbols, the entry name is the corresponding Unicode symbol. So, for searching the entry of a symbol, it suffices to type or copy the Unicode symbol into the search textbox. Similarly, when possible, the entry name of a symbol is also an anchor, which allows linking easily from another Wikipedia article. When an entry name contains ...
u+03fe Ͼ greek capital dotted lunate sigma symbol; u+03ff Ͽ greek capital reversed dotted lunate sigma symbol; u+2140 ⅀ double-struck n-ary summation; u+2211 ∑ n-ary summation (∑, ∑) u+23b2 ⎲ summation top [a] u+23b3 ⎳ summation bottom; u+2ca4 Ⲥ coptic capital letter sima; u+2ca5 ⲥ coptic small letter sima; u+2cea ...
Summation notation may refer to: Capital-sigma notation, mathematical symbol for summation; Einstein notation, summation over like-subscripted indices
From Wikipedia, the free encyclopedia. Redirect page. Redirect to: Summation#Capital-sigma notation
The Combining Diacritical Marks for Symbols block contains arrows, dots, enclosures, and overlays for modifying symbol characters. The math subset of this block is U+20D0–U+20DC, U+20E1, U+20E5–U+20E6, and U+20EB–U+20EF.
The following table lists many specialized symbols commonly used in modern mathematics, ordered by their introduction date. The table can also be ordered alphabetically by clicking on the relevant header title.