def from_metric(cls, metric):
"""
Get Ricci Tensor calculated from Metric Tensor
Parameters
----------
metric : ~einsteinpy.symbolic.metric.MetricTensor
Metric Tensor
"""
ch = ChristoffelSymbols.from_metric(metric)
return cls.from_christoffels(ch, parent_metric=None)
def from_metric(cls, metric):
"""
Get Riemann Tensor calculated from a Metric Tensor
Parameters
----------
metric : ~einsteinpy.symbolic.metric.MetricTensor
Metric Tensor from which Riemann Curvature Tensor to be calculated
"""
ch = ChristoffelSymbols.from_metric(metric)
return cls.from_christoffels(ch, parent_metric=None)