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田山东

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[交流] mathematics求解得到好多 #1 & 等符号,怎么回事啊?

我用mathematics求解矩阵特征值和特征向量,结果中得到了好多 # &  ,这是怎么回事啊?
有人知道吗?
M^4 - 2 M^2 px^2 + px^4 - 2 M^2 py^2 + 2 px^2 py^2 + py^4 +
   2 M^2 \[Lambda]^2 +
   2 M^2 \[Lambda]^2 Cos[
     2 \[Theta]] + (4 M px \[Lambda] Cos[\[Theta] - \[CurlyPhi]] -
      4 M px \[Lambda] Cos[\[Theta] + \[CurlyPhi]] -
      4 M py \[Lambda] Sin[\[Theta] - \[CurlyPhi]] -
      4 M py \[Lambda] Sin[\[Theta] + \[CurlyPhi]]) #1 + (-2 M^2 -
      2 px^2 - 2 py^2 - 4 \[Lambda]^2) #1^2 + #1^4 &, 1]
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田山东(金币+1): 谢谢参与
那是纯函数的符号。Mathematica指南上有介绍。
2楼2012-04-08 20:13:19
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