Math.
a system of coordinates for locating a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle) .
[ 1810-20 ]
Math.
a system of coordinates for locating a point in a plane by the length of its radius vector and the angle this vector makes with the polar axis (polar angle) .
[ 1810-20 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012