# Row

This time we are looking on the crossword puzzle clue for: Row.
it’s A 3 letters crossword definition.
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### Random information on the term “Row”:

In linear algebra, a column vector or column matrix is an m × 1 matrix, that is, a matrix consisting of a single column of m elements,

Similarly, a row vector or row matrix is a 1 × m matrix, that is, a matrix consisting of a single row of m elements

Throughout, boldface is used for the row and column vectors. The transpose (indicated by T) of a row vector is a column vector

and the transpose of a column vector is a row vector

The set of all row vectors forms a vector space called row space, similarly the set of all column vectors forms a vector space called column space. The dimensions of the row and column spaces equals the number of entries in the row or column vector.

The column space can be viewed as the dual space to the row space, since any linear functional on the space of column vectors can be represented uniquely as an inner product with a specific row vector.

To simplify writing column vectors in-line with other text, sometimes they are written as row vectors with the transpose operation applied to them.

### Random information on the term “OAR”:

Offender Aid and Restoration (OAR) is a movement that began in the 1970s in response to a prison riot in Charlottesville, Virginia. A group of volunteers from the community believed that individuals incarcerated could be assisted by volunteers in successfully returning to the community after their incarceration. Many offices opened around the country focused on this mission and using the name of OAR. Today, there is no longer an umbrella organization by the name of OAR, but six locations still remain with the title of OAR, each of which operates independently of one another. Some of the locations changed the meaning of the acronym to be different from the original “Offender Aid and Restoration” (for example, the location in Fairfax utilizes “Opportunities, Alternatives and Resources”). Four of these locations are based in Virginia (Arlington, Fairfax, Richmond and Charlottesville), one is in Indiana and one is in New Jersey.