T3Tangent.gauge_residual

t3toolbox.manifold.T3Tangent.gauge_residual()

def gauge_residual(self) -> NDArray:  # shape = variation stack K+C (scalar/0-d when unstacked)

Max absolute gauge-condition violation, per stack element (shape = variation stack K+C; atol-independent; cached).

The expensive part of is_gauged() – a fixed tangent reused across an inner loop (e.g. the safe-mode GAUGE precondition of ManifoldGeometry.inner()) is contracted once.

Return type:

NDArray