Radix is a science fiction novel by American writer A.

A. Attanasio, published in 1981.

[1] It was nominated for the Nebula Award for Best Novel in 1981.

[2] It is the first of four books in Attanasio's Radix Tetrad, followed by In Other Worlds in 1984.

[3] Radix is the story of a young man's odyssey of self-discovery, from dangerous adolescent to warrior, from outcast to near-god, in a far-future Earth dramatically changed from the one we know.