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lapack_function

scipy.linalg._flapack:clangb

source: build-install/usr/lib/python3.14/site-packages/scipy/linalg/_flapack.cpython-314-x86_64-linux-gnu.so

Summary

Compute a norm of a banded matrix (LAPACK clangb).

Parameters

norm : str

'M' for the largest absolute value, '1' or 'O' for the 1-norm, 'I' for the infinity norm, 'F' or 'E' for the Frobenius norm. Lower case is accepted. Note that 'M' is not a consistent matrix norm.

kl : int

Number of subdiagonals.

ku : int

Number of superdiagonals.

ab : ndarray

Band storage of shape (kl + ku + 1, n): a[i, j] is held at ab[ku + i - j, j].

ldab : int, optional

Leading dimension of ab, at least kl + ku + 1, which is also the default.

Returns

n2 : float

The requested norm, always real.

Aliases

  • scipy.linalg._flapack.clangb