in_nullspace¶
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dolfin.cpp.la.in_nullspace(*args) → bool¶ Check whether a vector space basis is in the nullspace of a given operator. The string option ‘type’ can be “right” for the right nullspace (Ax=0) or “left” for the left nullspace (A^Tx = 0). To test the left nullspace, A must also be of type
GenericMatrix.Parameters: - GenericLinearOperator & A (const) –
- VectorSpaceBasis & x (const) –
- type (std::string) –
Return type: