Crossword-Solution: CONFOCAL
Dictionary
| Word | Word Type | Definition |
|---|---|---|
| Confocal | a. | Having the same foci; as, confocal quadrics. |
We have 1 clue for the answer “CONFOCAL”
| Clue | Answers |
|---|---|
| CONIC sections that have the same foci | 1 answer |
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Dermatological complaint
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Hint 1 meaning
An inflammatory disease of the skin, characterized by the
presence of redness and itching, an eruption of small vesicles, and the
discharge of a watery exudation, which often dries up, leaving the skin
covered with crusts; -- called also tetter, milk crust, and salt rheum.
Hint 2 anagram
AEEMZC
Hint 3 another clue
eruption
11 +2
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Sentences with CONFOCAL (3)
The potential of such a shell at any internal point is constant, and the equipotential surfaces for external space are ellipsoids confocal with the ellipsoidal shell.
The theory of cosingular complexes is thus brought into line with that of confocal surfaces in four dimensions, and guided by these principles the existence of cosingular quadratic complexes can easily be established, the analysis required being almost the same as that invented for confocal cyclides by Darboux and others.
Writing the equation of the focal ellipse of the Darboux hyperboloid through H, enlarged to double scale so that O is the centre, (30) x²/[alpha]² + y²/ß² + z²/O = 1, with [alpha]² + [lambda], ß² + [lambda], [lambda] denoting the squares of the semiaxes of a confocal ellipsoid, and [lambda] changed into µ and [nu] for a confocal hyperboloid of one sheet and of two sheets.