BlockMatrix¶
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class
dolfin.cpp.la.
BlockMatrix
(m=0, n=0)¶ Bases:
object
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apply
()¶ Finalize assembly of tensor
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get_block
()¶ Overloaded versions
get_block(i, j)
Get block (const version)
get_block(i, j)
Get block
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mult
()¶ Matrix-vector product, y = Ax
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schur_approximation
()¶ Create a crude explicit Schur approximation of S = D - C A^-1 B of (A B; C D) If symmetry != 0, then the caller promises that B = symmetry * transpose(C).
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set_block
()¶ Set block
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size
()¶ Return size of given dimension
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str
()¶ Return informal string representation (pretty-print)
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thisown
¶ The membership flag
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zero
()¶ Set all entries to zero and keep any sparse structure
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