pylops.Flip¶
- class pylops.Flip(*args, **kwargs)[source]¶
Flip along an axis.
Flip a multi-dimensional array along
axis
.- Parameters
Notes
The Flip operator flips the input model (and data) along any chosen direction. For simplicity, given a one dimensional array, in forward mode this is equivalent to:
\[y[i] = x[N-1-i] \quad \forall i=0,1,2,\ldots,N-1\]where \(N\) is the dimension of the input model along
axis
. As this operator is self-adjoint, \(x\) and \(y\) in the equation above are simply swapped in adjoint mode.- Attributes
Methods
__init__
(dims[, axis, dtype, name])Initialize this LinearOperator.
adjoint
()Hermitian adjoint.
apply_columns
(cols)Apply subset of columns of operator
cond
([uselobpcg])Condition number of linear operator.
conj
()Complex conjugate operator
div
(y[, niter, densesolver])Solve the linear problem \(\mathbf{y}=\mathbf{A}\mathbf{x}\).
dot
(x)Matrix-matrix or matrix-vector multiplication.
eigs
([neigs, symmetric, niter, uselobpcg])Most significant eigenvalues of linear operator.
matmat
(X)Matrix-matrix multiplication.
matvec
(x)Matrix-vector multiplication.
reset_count
()Reset counters
rmatmat
(X)Matrix-matrix multiplication.
rmatvec
(x)Adjoint matrix-vector multiplication.
todense
([backend])Return dense matrix.
toimag
([forw, adj])Imag operator
toreal
([forw, adj])Real operator
tosparse
()Return sparse matrix.
trace
([neval, method, backend])Trace of linear operator.
transpose
()Transpose this linear operator.