nifty8.operators.endomorphic_operator module#

class EndomorphicOperator[source]#

Bases: LinearOperator

Represents a LinearOperator which is endomorphic, i.e. one which has identical domain and target.

draw_sample(from_inverse=False)[source]#

Generates a sample from a Gaussian distribution with zero mean and covariance given by the operator.

May or may not be implemented. Only optional.

Parameters:: from_inverse (bool (default : False)) – if True, the sample is drawn from the inverse of the operator
Returns:: A sample from the Gaussian of given covariance.
Return type:: nifty8.field.Field or nifty8.multi_field.MultiField

get_sqrt()[source]#

Return operator op which obeys self == op.adjoint @ op.

Note that this function is only implemented for operators with real spectrum.

property sampling_dtype#: Sampling dtype if operator is used as covariance operator.

property target#

returns domain

Returns self.domain, because this is also the target domain for endomorphic operators.