Full text: Oeuvres mathématiques diverses (Tome 1)

310 
(EUVRES DE FERMAT. — IF PARTIE. 
areà infinita triangula ejusdem ares exhibemus : verbi gratia, datà 
areà 6 trianguli 3.4.5., en aliud triangulum ejusdem ares 
7 120 1201 
10 7 70 
aut, si placet eadem denominatio, 
49 
n 1200 
e : . 1201 
70; 
Perpetua et constans methodus hse est : Exponatur quodlibet trian- 
gulum, eujus hypotenusa Z, basis 2, perpendiculum D. Ab eo sic for- 
matur aliud triangulum dissimile ejusdem are: : nempe formetur abs 
Z quadrato et Bin D bis, et planoplana lateribus similia applicentur 
Z in B quadratum bis — Z in D quadratum bis. Hoc novum triangulum 
habebit aream s:equalem are: preecedentis. 
Ad hoc secundo eàdem methodo formetur tertium, a tertio quartum, 
a quarto quintum, et fient triangula in infinitum dissimilia ejusdem 
ares. 
Et ne dubites plura tribus dari posse, inventis tribus Diophanti 
40.42.58., . 24.70.94., Gb. 15.112.113, 
quartum adjungimus dissimile ejusdem tamen are : 
I 412 881 , 
EN hypotenusa, 
1 412 880 hasis, 
1189 
uu erpendiculum 
1189 perp 
et, omnibus in eumdem denominatorem ductis, fient quatuor triangula 
in integris equalis arez:? quie sequuntur : 
Primum... .. 47 360 
Secundum.... 28 536 
Tertium ...... 17 835 
Quartum...... 1 681 
fig 938 
83 233o 
133 168. 
1-412. 880. 
68 962. 
87 986 
134 35». 
I 412 SSr.
	        
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