Clavius, Christoph
,
Geometria practica
Text
Text Image
Image
XML
Thumbnail overview
Document information
None
Concordance
Notes
Handwritten
Figures
Content
Thumbnails
Page concordance
<
1 - 30
31 - 60
61 - 90
91 - 120
121 - 150
151 - 180
181 - 210
211 - 240
241 - 270
271 - 300
301 - 330
331 - 360
361 - 390
391 - 420
421 - 450
>
Scan
Original
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
1.
30
2
31
32
33
3
34
4
35
5
36
6
37
7
38
8
39
9
40
10
<
1 - 30
31 - 60
61 - 90
91 - 120
121 - 150
151 - 180
181 - 210
211 - 240
241 - 270
271 - 300
301 - 330
331 - 360
361 - 390
391 - 420
421 - 450
>
page
|<
<
of 450
>
>|
<
echo
version
="
1.0RC
">
<
text
xml:lang
="
la
"
type
="
free
">
<
div
xml:id
="
echoid-div11
"
type
="
section
"
level
="
1
"
n
="
11
">
<
pb
file
="
018
"
n
="
18
"
rhead
="
INDEX.
"/>
</
div
>
<
div
xml:id
="
echoid-div12
"
type
="
section
"
level
="
1
"
n
="
12
">
<
head
xml:id
="
echoid-head14
"
xml:space
="
preserve
">SEXTI LIBRI PROPOSITIONES.</
head
>
<
note
style
="
it
"
position
="
right
"
xml:space
="
preserve
">
<
lb
/>
I. Si magnitudo in quotuis part{es} ſec{et}ur vtcunque, & alia quæpiam magnitudo in
<
lb
/>
totidem part{es} or dine illis proportional{es}; habebunt quotlib{et} part{es} prioris magnitudi-
<
lb
/>
nis ſimul ad reliqu{as} omn{es} part{es} ſimul, eandem proportionen
<
unsure
/>
s, quam totidem part{es} po-
<
lb
/>
ſterioris magnitudinis ſimul, ad reliqu{as} omn{es} part{es} ſimul. Et ſi quælib{et} pars prio-
<
lb
/>
ris magnitudinis ſec{et}ur in du{as} part{es} vto
<
unsure
/>
unque, ſecetur autem & pars poſterioris ma-
<
lb
/>
gnitudinis illi parti reſpondens in ali{as} du{as} part{es} duab{us} illis proportional{es}; erunt quo-
<
lb
/>
que ibidem totæ magnitudin{es} ſectæ proportionaliter. # 237
<
lb
/>
II. Dato rectilineo, ſuper datam rectam inter ali{as} du{as} interceptam, conſtituere
<
lb
/>
quadrilaterum æquale, cui{us} lat{us} oppoſitum inter du{as} eaſdem rect{as} interceptum, datæ
<
lb
/>
rectæ ſit parallelum. Et datis duob{us} rectilineis inæqualib{us} quibuſcunque, ex ma-
<
lb
/>
iore per lineam vni lateri parallelam detrahere rectilineum minori æquale, quando id
<
lb
/>
fieri poteſt. quod ex ipſa problematis ſolutione cognoſcetur. # 239
<
lb
/>
III. Diui
<
unsure
/>
ſo rectilineo quolib{et} in triangula ex vno aliquo puncto; rect{as} line{as} ipſis
<
lb
/>
triangulis ordine proportional{es} inuenire. # 246
<
lb
/>
IV. Datum rectilineum per rectam à quouis angulo, vel puncto in aliquo latere du-
<
lb
/>
ctam in proportionem datam diuidere: ita vt antecedens proportionis in quam malueris
<
lb
/>
partem verg{at}. # 248
<
lb
/>
SCHOLIVM. Datum rectilineum ex dato angulo, vel puncto in latere,
<
lb
/>
in quotuis partes æquales ſecare. # 252
<
lb
/>
V. Datum rectilineum per rectam lineam datæ rectæ parallelam, in datam propor-
<
lb
/>
tionem diuidere: ita vt antecedens proportionis in quam elegeris partem verg{at}. # 253
<
lb
/>
SCHOLIVM. Datum rectilineum in quotuis partes æquales per lineas
<
lb
/>
cuilibet rectæ parallelas diſtribuere. # 260
<
lb
/>
VI. Si duo triangula æquæ
<
unsure
/>
lia habeant vnum lat{us} commune, & in diuerſ{as} part{es}
<
lb
/>
vergant: Recta oppoſitos angulos connectens a latere illo communi bifariam ſecatur. # 260
<
lb
/>
VII. Si in triangulo baſi parallela ducatur, & extrema parallelarum rectis iun-
<
lb
/>
gantur ſeſeinterſecantib{us}: Habebit vtriuſuis harum rectarum ſegmentum ab angu-
<
lb
/>
lo incipiens ad reliquum in latere terminatum, eandem proportionem, quam lat{us} ab il-
<
lb
/>
la recta diuiſum ad partem ei{us} ſuperiorem. Recta autem ex tertio angulo per interſe-
<
lb
/>
ctionem dictarum rectarum extenſa ſecabit vtramque parallelam bifariam. # 261
<
lb
/>
VIII. Si in triangulo à duob{us} angulis duærectæ ducantur ad media puncta oppoſi-
<
lb
/>
torum laterum: Recta ex angulo reliquo per interſectionem earum deducta ſecat quo-
<
lb
/>
que reliquum lat{us} bifariam. Cui{us}lib{et} autem illarum trium linearum ſegmentum
<
lb
/>
prope angulum ad reliquum ſegmentum duplam hab{et} proportionem. Triangulum de-
<
lb
/>
nique per rect{as} ab interſectione ad angulos duct{as} in tria triangula æqualia diuiditur.
<
lb
/>
# 261
<
lb
/>
IX. Si in triangulo ducatur recta vtcunque duo latera ſecans: Erit totum trian-
<
lb
/>
gulum ad abſciſſum triangulum, vt rectangulum ſub duob{us} laterib{us} ſectis toti{us} trian-
<
unsure
/>
<
lb
/>
guli comprehenſum, ad rectangulum ſub duob{us} laterib{us} trianguli abſciſſi, quæ prio-
<
lb
/>
rum ſegmenta ſunt, comprehenſum. # </
note
>
</
div
>
</
text
>
</
echo
>