tightbinder.topology.calculate_z2_invariant#

calculate_z2_invariant(wcc_flow)[source]#

Routine to compute the z2 invariant from the number of jumps the max gap midpoint does across different WCC bands.

Parameters:

wcc_flow (ndarray) – Array with the WCC for all paths.

Return type:

int

Returns:

Value of Z2 invariant.