Viquipèdia

Problema d'Apol·loni: diferència entre les revisions

Exploració interactiva de l'historial
← Edició anteriorEdició següent →
Contingut suprimit Contingut afegit
VisualWikitext
Línia 278:
 
{{Caixa desplegable|align=center|títol=''The Kiss Precise'' (en anglès)|contingut=
<poem style="font-style: italic">
<poem>
''For pairs of lips to kiss maybe''
''Involves no trigonometry.''
'''Tis not so when four circles kiss''
''Each one the other three.''
''To bring this off the four must be''
''As three in one or one in three.''
''If one in three, beyond a doubt''
''Each gets three kisses from without.''
''If three in one, then is that one''
''Thrice kissed internally.''
 
''Four circles to the kissing come.''
''The smaller are the benter.''
''The bend is just the inverse of''
''The distance from the center.''
''Though their intrigue left Euclid dumb''
''There's now no need for rule of thumb.''
''Since zero bend's a dead straight line''
''And concave bends have minus sign,''
''The sum of the squares of all four bends''
''Is half the square of their sum.''
</poem>
}}
Obtingut de «https://ca.wikipedia.org/wiki/Problema_d%27Apol·loni»