The story
Named after Gregorio Ricci-Curbastro, who developed the notation and theory in the late 19th century.
Etymology from Wiktionary, CC BY-SA 4.0.
Ricci calculus
Today it means: A formal system in which index notation is used to define tensors and tensor fields and the rules for their manipulation; the theory of tensor calculus as developed by Gregorio Ricci-Curbastro, which formed the foundation of the modern theory. Full definition →