Mathematics • Off-
center, in geometry •
Eccentricity (graph theory) of a vertex in a graph •
Eccentricity (mathematics), a parameter associated with every conic section
Orbital mechanics •
Orbital eccentricity, in astrodynamics, a measure of the non-circularity of an orbit •
Eccentric anomaly, the angle between the direction of periapsis and the current position of an object on its orbit •
Eccentricity vector, in celestial mechanics, a dimensionless vector with direction pointing from apoapsis to periapsis • Eccentric, a type of
deferent, a circle or sphere used in obsolete epicyclical systems to carry a planet around the Earth or Sun
Other uses in science and technology •
Eccentric (mechanism), a wheel that rotates on an axle that is displaced from the focus of the circle described by the wheel •
Horizontal eccentricity, in vision, degrees of visual angle from the center of the eye •
Eccentric contraction, the lengthening of muscle fibers • Eccentric position of a
surveying tripod, to be able to measure hidden points •
Eccentric training, the motion of an active muscle while it is lengthening under load • Eccentricity, a deviation from
concentricity ==Other uses==