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Vectors

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A vector is a linear array of numbers, symbols, or expressions, arranged either in rows (row vectors) or columns (column vectors). (A vector is a tensor of rank 1.) The individual items in a vector are called its elements or entries.

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An vector is commonly written using box brackets (an alternative notation uses large parentheses instead). An column vector is written

while an row vector is written

where is the transpose of .

An example of a column vector with 5 entries is

while an example of a row vector with 5 entries is

See also