摘要
根据著名的Ｏｎｓａｇｅｒ解法，本文探讨了作用常数Ｊ１≠Ｊ２时的二维伊辛模型，得到了临界曲线的解析式：Ｃｈ２βＪ１ｃｈβＪ２＝ｓｈ２βＪ１十ｓｈ２βＪ２．
According to the famous Onsager solution. the two dimensions Ising model is discussed when reaction constant J1 is not equal to J2. and the analytic equation of critical curve is got: ch2βJ1ch2βJ2 = sh2βJ1 + sh2βJ2.
