Math.
an ordered set of numbers such that the ratio between any two successive terms is the same, as 1:3:9:27:81.
[ 1790-1800 ]
Math.
an ordered set of numbers such that the ratio between any two successive terms is the same, as 1:3:9:27:81.
[ 1790-1800 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012