plural of elliptic function

(algebraic geometry) The algebraic set of an equation which equates the square of one variable to a reduced cubic polynomial in another variable, over some field, and such that the discriminant of the reduced cubic is non-zero.

plural of elliptic spring

(mechanical engineering, automotive) A curved leaf spring of different styles.

(mathematics) Any function of a complex variable which is periodic in two directions.

plural of elliptic curve

(astronautics) A type of movement of a spacecraft from one orbit to another, in which the spacecraft first raises its apoapsis to an extremely high altitude, then, at the new, higher, apoapsis, performs an engine burn to change its periapsis to that of the desired orbit, and, finally, upon reaching the new periapsis, performs a third burn to lower the eccentricity of its orbit and circularize in the desired orbit, or performs these steps in reverse to move from a higher to a lower orbit.

plural of bi-elliptic transfer

(cryptography) A branch of public-key cryptography in which elliptic curves are used to generate key pairs.

Quality of being elliptical.