gnumpy.py 文件源码

def diagonal(self):
  if self.ndim==1: return self.diagflat()
  if self.ndim==2:
   if self.shape[0] > self.shape[1]: return self[:self.shape[1]].diagonal()
   if self.shape[1] > self.shape[0]: return self[:, :self.shape[0]].diagonal()
   return self.ravel()[::self.shape[0]+1]
  raise NotImplementedError('garray.diagonal for arrays with ndim other than 1 or 2.')