A recursive algorithm of combinatorial difference set design for least scale number on ruler - Tang, Baoxiang; Ren, Han (Zhejiang da xue xue bao. Journal of Zhejiang University. Sciences edition. Li xue ban, 2024)
Keywords: Algorithms; Combinatorial analysis; combinatorial difference recursive algorithm(组合差集递推算法); Engraving; graceful labeling algorithm(优美标号算法); graceful labeling(优美标号); Graph theory; minimal graceful graph(极小优美图); ruler with least number of scales(最省刻度尺); Ticks