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7 columns * 8 rows = 56 units
Array
It is a matrix or a determinant.
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table or array
A matrix having the same number of rows and columns is a SQUARE MATRIX.
Maybe 18 is the aweser
It is standard practice in a spreadsheet to number the rows and have letters identifying the columns.
Rows go across and columns go up and down.
This is a square matrix where the number of rows and the number of columns are equal.
Tabulated form of objects
Rows are horizontal cells identified by a number. Columns are vertical cells identified by a letter.