A vertical line of elements in a matrix is called column of a matrix.
The space inside a matrix is split as number of columns to place elements equally in each column. Every two elements in a column is separated by equal space.
Similarly, an equal space between every two columns is maintained in a matrix to avoid mixing elements of every two columns.
1 & 0 & -3 & 2 \\
4 & -7 & 7 & 5\\
-3 & 0 & 2 & -1\\
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