Forum Survival Time of Princess Kaguya in an Air-Tight Bamboo Chamber Akio Inoue and Hiroyuki Shima Forma, Vol. 33 (No. 1), pp. 1-5, 2018 [Abstract] | [Full text] (PDF 300 KB) | [Attractive image Fig.1] Nearest Neighbor Distance in Three-Dimensional Space Masashi Miyagawa Forma, Vol. 33 (No. 1), pp. 7-11, 2018 [Abstract] | [Full text] (PDF 208 KB) | [Attractive image Fig.2, Fig.5] Coding Rule for Periodic Orbits in the One-dimensional Map Yoshihiro Yamaguchi Forma, Vol. 33 (No. 1), pp. 13-22, 2018 [Abstract] | [Full text] (PDF 640 KB) | [Attractive image Fig.1]