Forma, Vol. 5 (No. 2), pp. 173-178, 1990
Original Paper

Plane Dividing T-configurations with Consequent Numbering and T-symbolism for Orthogonal Case

Tatuo Simizu

Research Laboratory of Shimizu Construction Co.,Ltd (Institute of Technology, Shimizu Corporation), Tokyo 104, Japan

(Received July 1, 1990; Accepted November 1, 1990)

Abstract. Planar configurations consisting of n straight lines, finite or infinite, and dividing the plane into n+l parts are considered, where the relation "making letter T" is basic. Symbolism for such T-configurations of orthogonal case and their realization with canonical size are described.