alternating series

noun

, Mathematics.

1. a series, usually infinite, in which successive terms have opposite signs, as 1 − ½ + ¼ − ⅛ + … .

Example Sentences

The area is thus an alternating series of three wooded slopes and two grass-covered, relatively level areas.

From Project Gutenberg

They use a piece of quartz or glass, making horizontal and vertical incisions in alternating series.

From Project Gutenberg