Benutzerin:Luelista/Mathematik

Körper

Würfel

O = 6a²

V = a³

Quader

O = 2(ab+bc+ac)

V = abc

Zylinder

O = 2*pi*r*(r+h)

O = 2*pi*r² + 2*pi*r*h

V = pi*r²*h

Kegel

$O=\pi r*(r+s)\,\!$

$V={\frac {1}{3}}*\pi r^{2}*h$

Pyramide

$V={\frac {1}{3}}G*h={\frac {1}{3}}a^{2}*h$

P-Q-Formel

$x_{1,2}=-{\frac {p}{2}}\pm {\sqrt {({\frac {p}{2}})^{2}-q}}$

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$f={\frac {\Delta N}{\Delta t}}={\frac {306Bilder}{4Stunden}}=76,5{\frac {Bilder}{Stunde}}=1,275{\frac {Bilder}{Minute}}=0,02125Hz$

--Max Weller 14:44, 4. Okt. 2009 (CEST)