Very complex; ad hoc, long time to compute (a couple of hours is typically reported – of course whether this is than really useful is another matter!!??)
Very complex; ad hoc, mahabang panahon upang makalkula (loob ng ilang oras ay karaniwang iniulat – siyempre kung ito ay sa talagang kapaki-pakinabang ay isa pang bagay!!??)