The Original Letter (Matrix)

The letter "N" can be represented by the following 2x9 matrix. (Note the matrix in the text does NOT produce an "N" -- or any letter!)

> N := matrix( 2, 9,
[ [ 0, 0.5, 0.5, 5.5, 5.5, 5, 5, 0, 0 ],
[ 0, 0, 6.5, 0, 8, 8, 1.5, 8, 0 ] ] );

The following command plots the columns of the matrix as points in the plane.

> pointplot( N, opts );

>