Module integrity 

Shared covariance and protection-metric primitives.

This module holds the small numerical kernels used by protection-level and position-error code: a symmetric 2x2 covariance eigensolve, row gain metrics, and public special-function entry points.

Re-exports

pub use crate::astro::math::special::erfc_inv;

pub use crate::astro::math::special::normal_q;

pub use crate::astro::math::special::normal_q_inv;

Structs

ErrorEllipse2

A confidence ellipse from an arbitrary 2x2 covariance block.

Enums

IntegrityError

Error returned by shared integrity primitives.

Functions

error_ellipse_2x2

Confidence ellipse for a symmetric 2x2 covariance block.

error_ellipse_2x2_unit

One-sigma ellipse for a symmetric 2x2 covariance block.

metric_cross

Covariance cross term for two gain rows and per-measurement sigmas.

metric_sigma

Standard deviation for one gain row and per-measurement sigmas.