【发布时间】:2017-03-26 19:19:51
【问题描述】:
这是我的代码:
class MetricTensor: #The Metric Tensor Class
def __init__(self, g0, g1, g2, g3, g4, g5, g6, g7, g8, g9, g10, g11, g12, g13, g14, g15): #Metric components
self.g0 = g0
self.g1 = g1
self.g2 = g2
self.g3 = g3
self.g4 = g4
self.g5 = g5
self.g6 = g6
self.g7 = g7
self.g8 = g8
self.g9 = g9
self.g10 = g10
self.g11 = g11
self.g12 = g12
self.g13 = g13
self.g14 = g14
self.g15 = g15
def LMetric(self):
lmetric = [self.g0, self.g1, self.g2, self.g3, self.g4, self.g5, self.g6, self.g7, self.g8, self.g9, self.g10, self.g11, self.g12, self.g13, self.g14, self.g15]
return list(lmetric)
def Mmetric(self,lmetric):
mmetric = np.matrix([lmetric[0],lmetric[1],lmetric[2],lmetric[3], [lmetric[4],lmetric[5],lmetric[6],lmetric[7]], [lmetric[8],lmetric[9],lmetric[10],lmetric[11]], [lmetric[12],lmetric[13],lmetric[14]],lmetric[15]])
return mmetric
def InvMmetric(self,mmetric):
invmmetric = self.np.linalg.inv(mmetric)
return invmmetric
def LInvMetric(self,invmmetric):
linvmetric = list(invmmetric)
return linvmetric
class ChristoffelSymbol(MetricTensor):
def __init__(self,a, b, c):
self.a = a
self.b = b
self.c = c
Ca = None
for k in numcoords:
Ca += 1/2*(linvmetric)
注意 MetricTensor 类的最后一个方法:LInvmetric,该函数返回:linvmetric.
我的问题是: 如何在新类 (ChristoffelSymbol) 中使用此返回 (linvmetric),它是第一个 (MetricTensor) 的子类?
更准确地说,如何在linvmetric中只使用一个元素(既然是列表,我想用linvmetric[0]为例)?
【问题讨论】:
-
numpy 已被导入为“np”
-
what_i_want, *_ = self.LInvMetric(invmmetric)
标签: python class methods return call