释义 |
ce·va's theorem \ˈchāvəz-, -ev-\ noun Usage: usually capitalized C Etymology: after Giovanni Ceva died ab 1734 Italian mathematician, its formulator : a theorem in geometry: if three lines from a point O to the vertices A, B, and C of a triangle meet the opposite sides in A′, B′, and C′ respectively then AB′=BC′=CA′+AC′=BA′=CB′ = 0 and conversely if this relation holds the three lines AA′, BB′, CC′ meet in a point |