Archimedean spiral

(redirected from Arithmetic spiral)

Archimedean spiral

[¦är·kə¦mēd·ē·ən ′spī·rəl]
(mathematics)
A plane curve whose equation in polar coordinates (r, θ) is rm = am θ, where a and m are a positive or negative integer.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.