I think its also important to mention that these results are for the multiplication of two general dense matrices and full floating point accuracy. If your matr

I think its also important to mention that these results are for the multiplication of two general dense matrices and full floating point accuracy. If your matrix is structured (sparse, sparse in the Fourier domain, low rank, H, HSS, etc) you can usually exploit that structure to break up the multiplication and reduce the work complexity dramatically. (These rely on building blocks of the dense general matrix results)