26. (a) The IFS plot converges to two points along the 1-2 side of the square, arranged 1/3 and 2/3 of the distance along the side.

(b) Here the IFS plot converges to two points, arranged 1/3 and 2/3 of the distance along the diagonal line between corners 1 and 3.

(c) The IFS plot converges to three points. From the sequence you can deduce the addresses of these points in the square. Together with the labeled corners of the IFS square, the points are shown below.

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