bundles / scipy 2.0.0.dev0+git20260907.41eeb59 / scipy / linalg / _flapack / dtrcon

lapack_function

`scipy.linalg._flapack:dtrcon`

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

Signature

def dtrcon(a, norm = 1, uplo = U, diag = N)

Summary

Estimate the reciprocal condition number of a triangular matrix (LAPACK dtrcon).

Parameters

a : ndarray: Square triangular matrix; only the triangle named by uplo is read.
norm : str, optional: '1' or 'O' for the 1-norm, 'I' for the infinity norm. Default is '1'.
uplo : str, optional: 'U' if a is upper triangular, 'L' if lower. Default is 'U'.
diag : str, optional: 'U' if the matrix has a unit diagonal, 'N' otherwise. Default is 'N'.

Returns

rcond : float: Estimate of the reciprocal condition number.
info : int: 0 on success; if negative, the -info-th argument had an illegal value.

Aliases

scipy.linalg._flapack.dtrcon