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In mathematics and computing: Direct sum, an operation from abstract algebra; Dilation (morphology), mathematical morphology; Tensor product, a mathematical operation indicated by U+2297 ⊗ CIRCLED TIMES; Exclusive or, a logical operation that outputs true only when inputs differ; In languages:
A mathematical symbol is a figure or a combination of figures that is used to represent a mathematical object, an action on mathematical objects, a relation between mathematical objects, or for structuring the other symbols that occur in a formula. As formulas are entirely constituted with symbols of various types, many symbols are needed for ...
The commonly-used diagram for the Borromean rings consists of three equal circles centered at the points of an equilateral triangle, close enough together that their interiors have a common intersection (such as in a Venn diagram or the three circles used to define the Reuleaux triangle).
The following table lists many common symbols, together with their name, how they should be read out loud, and the related field of mathematics. Additionally, the subsequent columns contains an informal explanation, a short example, the Unicode location, the name for use in HTML documents, [1] and the LaTeX symbol.
In mathematics, the study of the circle has helped inspire the development of ... The compass in this 13th-century manuscript is a symbol of God's act of Creation.
Circle symbol may refer to (in ascending order of size, approximately): ˚, ring diacritic , white bullet; ∘, function composition °, degree symbol; º, masculine ordinal indicator; o, music symbol denoting either: a diminished triad or; a diminished seventh chord; o, superscript lowercase letter o , white circle Unicode symbol , dotted circle
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.
The symbol used by mathematicians to represent the ratio of a circle's circumference to its diameter is the lowercase Greek letter π, sometimes spelled out as pi. [8] In English, π is pronounced as "pie" (/ p aɪ / PY). [9]