Definition of Directrixes

1. directrix [n] - See also: directrix



Lexicographical Neighbors of Directrixes

directorially
directories
directorless
directors
directorship
directorships
directory
directoryless
directour
directours
directress
directresses
directrice
directrices
directrix
directrixes (current term)
directs
direful
direfully
direly
dirempt
dirempted
dirempting
diremption
diremptions
dirempts
direness
direnesses
direption
direr

Literary usage of Directrixes

Below you will find example usage of this term as found in modern and/or classical literature:

1. Inductive Geometry, Or, An Analysis of the Relations of Form and Magnitude by Charles Bonnycastle (1834)
"This condition will be insured, if we suppose the generatrix to be guided by two directrixes, that have their corresponding positions parallel. ..."

2. Iron: An Illustrated Weekly Journal for Iron and Steel Manufacturers edited by Sholto Percy, Perry Fairfax Nursey (1840)
"1) represent a parabola jad its foci ; and no,pq, its two directrixes. Then, since ai + tk = l k+ki, and dk + ki=:mi + ik; bence, a » + » k + kd=mi+ik + kl. ..."

3. Annual Report of the United States Geological and Geographical Survey of the by Geological and Geographical Survey of the Territories (U.S.), United States General Land Office, United States Dept. of the Interior (1874)
"... their own engineer making the connection with the city-directrixes at both termini. If these levels are run with care, the elevation of Saint Louis, ..."

4. The Mechanics' Magazine, Museum, Register, Journal, and Gazette (1840)
"1) represent a parabola ; ad its foci ; and no, pq, its two directrixes. Then, since ai + » k = I k+ki, and dk + ki^mi + ik; hence, ai + » i + kd=mi+ik+kl. ..."

5. Notes on Analytical Geometry: An Appendix by Alfred Clement Jones (1903)
"Prove that the loci of its centre and the feet of its directrixes are the inverses of rectangular hyperbolas with respect to the common focus. 25. ..."

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