lzsmydear2000 发表于 2006-12-21 10:45

求教！

我用mathematica解以下方程组，输入后出现以下提示请问怎么办？\!\(FindRoot[{\(x + 41y\)\/\(1 + 41z\) ==
      4.45, \(x + 45y\)\/\(1 + 45z\) ==
      4.97, \(x + 49y\)\/\(1 + 49z\) == 5.97}, {x,
      3}, {y, \(-0.1\)}, {z, \(-0.1\)}]\)
FindRoot::"cvnwt": "Newton's method failed to converge to the prescribed \
accuracy after \!\(15\) iterations."

xjzuo 发表于 2006-12-21 11:20

回复

请先把方程写清楚.
页: [1]
查看完整版本: 求教！