| 释义 |
cubi-|ˈkjuːbɪ|
before a vowel cub- |kjuːb|,
combining form of L. cubus cube, used in some mathematical terms, as † cubi-cubic a., in cubi-cubic number, the ninth power of a number, or the cube of the cube; in mod. use denoting ‘of the third degree, cubic’, as cubi-cone, cubi-contravariant, cubi-covariant, cubinvariant, a cone, etc. of the third degree. (Cf. cubo-.)
1557Recorde Whetst. R iij b, .10,077,696. is a Cubicubike number, and his firste Cubike roote is .216. 1662Hobbes Seven Prob. Wks. 1845 VII. 67 Though there be some numbers called plane..others quadrato-cubic, others cubi-cubic. 1885Salmon Higher Algebra Index 262 §254 The cubinvariant of the Hessian. |