Principes de la géométrie analytique. Géométrie de l'espace, par L. Painvin.

, { ( (A aV + a,4ai vvw+ a R =^,
\ (IB) b. +' t +.tw +-b3 R-o,
lei eyq.zoX7,Z dt. 'e, dezac._, Porib e., fv, -V/ e, o,, c.rdoortnee; L n. fi (P-e O J V., -W, E L z> l, /a q,
7 l/arL 1P.!:.
Tk +,_ 9 DP, k ' L, - Qv 4 P,
n)m, Oim PD P1! m-, ~it PD __o.
-—.W~i-W-4'- -V^, — A R. =Rt C X --— fi-4
T T1 L P U D PO 17,;rL P,D PO k
eL VaAz.ir /e V I V# ~W~,7R,, ct^oQrtl.vfcr - 7t C iI.Z1 a OZ I -o PZmi (A-; Orn e7L JUI-tt
-ttn QB P, a V + a,vt- a-Mr a R
5;in Ps1 D P, a trO a, V,+- a2 -WV A 3 R- o
(9Oz {;totvtezqc de me'rnc-Z;;-Pt % +1, v + b, ~ + t,-
a rr P, -,P,. b eTq t,Vx,+ bb P\r+ hs R<,
C |fzdtiWitw7ot le, vacioi' 7 le cca -app,' ltn. a~. ie-ali'n (Ib.i). on rL /t t e -tt^l u |tL poinTt p cacc
g,)( - -=o.
6n nui'ai;I c 'ccrod zi^rre v I^ - i ''c rez ac def /fat/eJ ^drti-G- cti, t jl 3 jel 1 j21.
tpCiyueiTOT cceS' -locnzm e- al c ec L e cence.
| e>6 'po^-ini,) poicLteM d Ytn — jLr^ (, Ty V, ^,,PVs } 0 }3d'- rappo-cl e coWp, de, pVwir^ ect lcmeet Z.7a-c i~0 d. 7-niiall/- zr:3 T'..cri po:Cvcc^e-poiAC Le^C-cdP l Oi-fi 'ln-inefcteo crL dtt pfrc-n^ <aie^c r^^- coftot"
/' a ( ++ + + V
CAB): - Va — f o (A B) -: -— =o.;
}H1~ ~~~ | fC1J - '~ l '
I (hX7 W wr RW W
-v v T. -B; - * - = - -
1(C) V — + -- ' ()' — ~ -;
CR~~ V R Vo~~~~V
)... o....
'- -v ' 1

cZiX c ~rcl~~TCo7-r oL ced ejuatto7Z i^ JeTorT7'ca irnTnmeaiiatg ico tSe'oternzerL^irtVr, a reyetl, ouc-r *Cer Pr4af re
|,, I|i 2[ %A t i^ Z'.cdectiond 12L plaL P- arec. ei ote AzB, pt lL'e.jze e I C rorLrfle, te paexe^ it ncrze hu A —, "
l X dtZ Jopoir7b po tLc~c *tslgalt.f Jv u iA.B)
de- CJO- 50TLt- O Llt U1- 'CCL'rrO~Zt _ fa3C- -i-U~Llce a, -a w ~ t3 I _
I?-0 - UTV'pf^T ~E^ Q;prLpc/ cn-aLt.CUU,iez. aJcc d- M:LCac^'cc ^ tt/un-po < rt-; pce^z<cru T c,t A c- rctTlrint —
nei AO; t potTLf- pac czxppc.tc -t>- Jccvp Po'dnrL^.? 4tl ^ 4- eoe a'cd.; Ott, cC, Ia^& Cot c rrrri-.-~