Wasserstein distance \(W_2^2\) to another Gaussian.
\[W_2^2 = ||\mu_0-\mu_1||^2 +
\text{trace} ( (\Lambda_0^\frac{1}{2} - \Lambda_1^\frac{1}{2})^2 )\]
- Parameters:
other (Gaussian) – other Gaussian
- Return type:
Array
- Returns:
The \(W_2^2\) distance between self and other
