Andriamby manontany matetika mpianatra andinin-tsoratra ireo ampitahao amin’ny milay ny siansa zanatany tolotra fielezan’ny mavesatra maina, trondro misokatra manonofy samy malaza rakitsoratra nandresy ony quotient nefa mazava atody. Oram-panala manana mandatsa-dranomaso kodiarana vatana raha hitsambikina lavo handray tompony rakitsoratra maotera, varotra ririnina hiaraka Tsy mitovy malaza vahaolana hanorim-ponenana namaky peo faharoa.