Characteristic or Eigenvalues c.  2 0 2  

c. y 得到 characteristic, own, or eigen values of its引數, arranged in ascending order on imaginary part within real within magnitude. An 原子 or list y is treated as表格 ,.y .
  0 c. y is a diagonal 矩陣with eigenvalues c. y on diagonal. Also, _1 c. y and 1 c. y are 左與右eigen向量. If i=: _1 0 1,n +/ . */ i c. y is y .

Not implemented in Release 4.01.