ÖS ) o c 
190 
GsO 
atque PF=x , defcribantur arcus circuli, fecante? 
utramquc PF & TF in p, Q & His fail's (it an- 
gulus PFA = i?, area PFA — u \ atque fequenti ra- 
tione eruentur, formulae: 
Pro radio vetfore PF = x 
per funftionem Anomaliæ veræ exprimendo, 
i : Cof. v : : PF : FH : : „v : FH — x Cof. v ; fed FH = 
2 FA — FP — 2 — x; ergo • x Cof. v = 2 • — x, unde 
221 
i Cof. v 2 Cof . 2 \v Cof . 2 -kv 
Pro area PFA = u. 
Quum ang. QF A = v (radio QF exiftente 1), cric 
dv 
Qqzzdv, & fe&or QFq — dv unde habetur 
2 
QF* ( 1) : ) : : Seft. '■ Sed. P Fp 
dv 
2 
dv 
2 
V 
Cof- 
2 
= rfa; «= /= 
V 
Cof — 
2 
( v v \ 
Sin.— 2 Sin. — 
l4-~ 
Cof 
7? 
v 
Cof — 
2 
/ u 
/ T. - 
i 
3 
v \ i i? u — v 
Cof 
v 
; + it.-j=-(T.-. S ec.- 
2 y 3 2 - 2 y 
I/v V v > I V * 
= — ( T. — . i + T. — f- 2T. — ) = — (3 T. — + 
2X2 2 2 ' 2 2 
V \ V , 
T. — ^ = T. — ( 
2/ 2 
T. 
i 4- £ 
i • 
V 
Si 
