pygsti.tools.matrixtools.nice_nullspace

Contents

pygsti.tools.matrixtools.nice_nullspace#

nice_nullspace(m, tol=1e-07, orthogonalize=False)#

Computes the nullspace of a matrix, and tries to return a “nice” basis for it.

Columns of the returned value (a basis for the nullspace) each have a maximum absolute value of 1.0.

Parameters:

  • m (numpy array) – An matrix of shape (M,N) whose nullspace to compute.

  • tol (float , optional) – Nullspace tolerance, used when comparing diagonal values of R with zero.

  • orthogonalize (bool, optional) – If True, the nullspace vectors are additionally orthogonalized.

Return type:

An matrix of shape (M,K) whose columns contain nullspace basis vectors.

Contents