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# scipy.linalg.lapack.zgges

`scipy.linalg.lapack.``zgges`(zselect, a, b[, jobvsl, jobvsr, sort_t, ldvsl, ldvsr, lwork, zselect_extra_args, overwrite_a, overwrite_b]) = <fortran object>

  Wrapper for `zgges`.

  Parameters: | zselect : call-back function a : input rank-2 array(‘D’) with bounds (lda,*) b : input rank-2 array(‘D’) with bounds (ldb,*)
  Returns: | a : rank-2 array(‘D’) with bounds (lda,*) b : rank-2 array(‘D’) with bounds (ldb,*) sdim : int alpha : rank-1 array(‘D’) with bounds (n) beta : rank-1 array(‘D’) with bounds (n) vsl : rank-2 array(‘D’) with bounds (ldvsl,n) vsr : rank-2 array(‘D’) with bounds (ldvsr,n) work : rank-1 array(‘D’) with bounds (MAX(lwork,1)) info : int
  Other Parameters:

  jobvsl : input int, optional

  > Default: 1

  jobvsr : input int, optional

  > Default: 1

  sort_t : input int, optional

  > Default: 0

  zselect_extra_args : input tuple, optional

  > Default: ()

  overwrite_a : input int, optional

  > Default: 0

  overwrite_b : input int, optional

  > Default: 0

  ldvsl : input int, optional

  > Default: ((jobvsl==1)?n:1)

  ldvsr : input int, optional

  > Default: ((jobvsr==1)?n:1)

  lwork : input int, optional

  > Default: 2*n

  Notes

  Call-back functions:

      def zselect(alpha,beta): return zselect
      Required arguments:
        alpha : input complex
        beta : input complex
      Return objects:
        zselect : int