登山者的仰望

不仅要走好脚下的每一步,也要仰望山顶

2008年10月9日

骨牌覆盖的已有研究

摘要: Problem: Count the ways to tile an MxN rectangle with 1x2 dominos. Solve: The number of ways to tile an MxN rectangle with 1x2 dominos is 2^(M*N/2) times the product of { cos^2(m*pi/(M+1)) + cos^2(n... 阅读全文

posted @ 2008-10-09 13:15 光光GG 阅读(312) 评论(0) 推荐(0)