•Ml

co ^ ■ ^ Se approximate value of z DC A = z ECT inm putiiig Et which equals the arc DM„ for, since (see p. 458.)

area Q * ^EA, and (the body being supposed to revolve iu the

C| rcle DM) = —~— x ACM-, area A££> = area ACM,area O

or. the area DEC + area ACD = area DCM + area ACD;consequently, the area DEC - the area DCM,

' es pressing their values,

DM x DC

and ET = DM.

H

avi »g then computed ET - DM, find the sine of the resultingDl If, which sjne _ 0T . the difference of the arc and sine

- OT) gives EO.

(A) U se EO i n computing the angle EM0‘, the real difference,e ^ Veen the eccentric anomaly DC A, and the L MEC . ad

Xhe ^ 0tll P u ted z EMO to Z MEC, in order to obtain z DC A.l however, is not the exact value of Z DC A, since

P r °ces ^ ^* aS been computed only approximately; that is, by aof the S commenced by assuming Z MEC, for the value

0r purpose of finding the eccentric anomaly, this is the,re description of the process ; which, if greater accuracy

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