Function soco::distance::mahalanobis

pub fn mahalanobis<'a, T>(q: &DMatrix<T>, mean: Config<T>) -> Result<NormFn<T>> where
    T: RealField + Value<'a>, 

Mahalanobis distance square. This norm is $1$-strongly convex and $1$-Lipschitz smooth.

$Q$ must be positive semi-definite.