Its position seems to have determined its form, which is certainly that of X rather than of Ξ.
It cannot therefore represent a function of ξ which has more than one value, or which becomes imaginary for any value of ξ.
The letter χ represented 600, ξ represented 60, and Ϝ stood for 6.
To effect this the cork must be heavier than the leaden weight suspended at Ξ.
The star 15 Monocerotis is a little south of ξ Geminorum, and was measured 4·59 magnitude at Harvard.
In the latter there is sufficient water to stop up the orifice of the tube, Ξ Ο.
Look also at the cluster 93 M, just above and to the west of ξ.
To any point (x, y) of ƒ will then correspond a definite point (ξ, η) of F.
The series is evidently single-valued for any given value of ξ.
Then pass on to ξ Ursæ majoris, where the closeness of the two members is still greater.
fourteenth letter of the Greek alphabet.
The Greek letter xi. Entries beginning with this character are alphabetized under xi.
xi (zī, sī, ksē)
Symbol ξ The 14th letter of the Greek alphabet.