idemfaciend

English

Etymology

From idem +‎ faciend.

Adjective

idemfaciend (not comparable)

1. (mathematics, linear algebra) When multiplied by an idempotent matrix produces itself.
   • 1882, Benjamin Peirce, Linear Associative Algebra, page 14:

     The possibility of the selection of all the remaining units as idemfaciend or nilfaciend is easily established.