A comma is a typesetting symbol which has several distinct meanings in mathematics. It is used for a number of purposes.

1. To denote Boundaries between elements in a list, as in .

2. To delimit indices in the element of a matrix, as in (although it is frequently omitted when implied by context).

3. To indicate the comma derivative of a tensor.

4. In place of a decimal point in continental Europe, e.g., 3,14159.

See also

Comma Derivative, Comma Sequence, Decimal Point

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References

Bringhurst, R. The Elements of Typographic Style, 2nd ed. Point Roberts, WA: Hartley and Marks, p. 275, 1997.

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Comma

Cite this as:

Weisstein, Eric W. "Comma." From MathWorld--A Wolfram Resource. https://mathworld.wolfram.com/Comma.html

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