Package linear_operators :: Module operators :: Class SymmetricBandOperator

Class SymmetricBandOperator

              object --+        
                       |        
interface.LinearOperator --+    
                           |    
           SymmetricOperator --+
                               |
                              SymmetricBandOperator

Instance Methods

[hide private]

__init__(self, shape, ab, lower=True, **kwargs)
Returns a SymmetricOperator of given shape and matvec function.

source code

eigen(self, eigvals_only=False, overwrite_a_band=False, select='a', select_range=None, max_ev=0)
Solve real symmetric or complex hermitian band matrix eigenvalue problem. source code

cholesky(self, overwrite_ab=False)
Chlesky decomposition.

source code

Inherited from interface.LinearOperator: __add__, __iadd__, __imul__, __isub__, __mul__, __neg__, __pow__, __radd__, __repr__, __rmul__, __rsub__, __sub__, matmat, matvec, todense

Inherited from interface.LinearOperator (private): _matmat

Inherited from object: __delattr__, __format__, __getattribute__, __hash__, __new__, __reduce__, __reduce_ex__, __setattr__, __sizeof__, __str__, __subclasshook__

Properties

[hide private]

rab

Inherited from interface.LinearOperator: T

Inherited from object: __class__

Method Details

[hide private]

init(self, shape, ab, lower=True, **kwargs)
(Constructor)

source code

Returns a SymmetricOperator of given shape and matvec
function.

Parameters
----------

shape : length 2 tuple
    The shape of the operator. Should be square.

matvec : function
    The matrix-vector operation.

Returns
-------
A SymmetricOperator instance.

Overrides: object.__init__: (inherited documentation)

eigen(self, eigvals_only=False, overwrite_a_band=False, select=`'a'`, select_range=None, max_ev=0)

source code

Solve real symmetric or complex hermitian band matrix eigenvalue problem.

Uses scipy.linalg.eig_banded function.

cholesky(self, overwrite_ab=False)

source code

Chlesky decomposition. Operator needs to be positive-definite.

Uses scipy.linalg.cholesky_banded.

Returns a matrix in ab form

Property Details

[hide private]

rab

Get Method:: unreachable.rab(self)

Class SymmetricBandOperator

__init__(self, shape, ab, lower=True, **kwargs) (Constructor)

eigen(self, eigvals_only=False, overwrite_a_band=False, select='a', select_range=None, max_ev=0)

cholesky(self, overwrite_ab=False)

rab

init(self, shape, ab, lower=True, **kwargs)
(Constructor)

eigen(self, eigvals_only=False, overwrite_a_band=False, select=`'a'`, select_range=None, max_ev=0)