positive definiteness covariance

abela annulment of law controlling process design operating conditions diddley-hop genus Diphylla Goormagtigh's apparatus heraclituss high-altitude magnetic field lottery-ticket LXGVHR multiplicata no bail non-graphic/video terminal outstanding orders rajbari requirement vector self-contained portable electric lamp Villeneuve-sur-Yonne witwatersrand (witwatersberg)