INVOLUTION

in math’s the raising of a quantity to a given power, e.g.42= 16. Hvolution, the extracting of roots (e.g. Vi6+4) is included with I. under Theory of indices. See ALGEBRA. king of Argos; beloved by Zeus, who, to save her from Hera, changed her into white heifer; Hera sent to Argus to guard her, but Hermes slew him; eventually was restored to human form, (2) (Astron.) an asteroid, and also a satellite of Jupiter.