Definition:Eccentric

Definition

Two plane figures which each have centres of symmetry are said to be eccentric if and only if their centers do not coincide.

Eccentric Circles

Circles are said to be eccentric if their centers are at different points.

Circles $K_1$ and $K_2$, whose centers are $C_1$ and $C_2$, are eccentric.

Eccentric Ellipses

Ellipses are said to be eccentric if their centers are at different points.

Ellipses $E_1$ and $E_2$, whose centers are $C_1$ and $C_2$, are eccentric.

Also see

• Definition:Concentric

• Results about eccentric can be found here.

Sources

• 1998: David Nelson: The Penguin Dictionary of Mathematics (2nd ed.) ... (previous) ... (next): eccentric
• 2008: David Nelson: The Penguin Dictionary of Mathematics (4th ed.) ... (previous) ... (next): eccentric