The inverse of a numerator relationship matrix is needed for best linear unbiased prediction of breeding values. The purpose of this paper to is present a rapid and simple method for computation of ...

The inverse of the correlation matrix, however, also has important interpretations. An exposition of some of the properties connected with the inverse of the correlation matrix is provided and its use ...

The explicit return is not needed but the decomposition matrix return value is used by helper function Reduce () and the permutation array return value is needed too in order to compute the result ...