http://en.wikipedia.org/wiki/Help:Displaying_a_formula
U = 4 π 2 a 3 G ( M 1 + M 2 ) {\displaystyle U={\sqrt {\frac {4\pi ^{2}a^{3}}{G(M_{1}+M_{2})}}}}
U = 4 π 2 ( 13.3 ⋅ 10 9 m ) 3 6.673 ⋅ 10 − 11 m 3 k g ⋅ s 2 ( 1.756 ⋅ 10 28 k g + 5.291 ⋅ 10 22 k g ) {\displaystyle U={\sqrt {\frac {4\pi ^{2}({13.3\cdot 10^{9}m})^{3}}{6.673\cdot 10^{-11}{\frac {m^{3}}{kg\cdot s^{2}}}(1.756\cdot 10^{28}kg+5.291\cdot 10^{22}kg)}}}}
G = 4 π 2 a 3 U 2 ( M 1 + M 2 ) {\displaystyle {G}={\frac {4\pi ^{2}a^{3}}{U^{2}(M_{1}+M_{2})}}}
G = 4 π 2 ( 13.3 ⋅ 10 9 m ) 3 ( 9203544.6 s e c ) 2 ⋅ ( 1.756 ⋅ 10 28 k g + 5.291 ⋅ 10 22 k g ) {\displaystyle {G}={\frac {4\pi ^{2}({13.3\cdot 10^{9}m})^{3}}{(9203544.6sec)^{2}\cdot (1.756\cdot 10^{28}kg+5.291\cdot 10^{22}kg)}}}
U 2 = 4 π 2 a 3 G ( M 1 + M 2 ) {\displaystyle U^{2}={\frac {4\pi ^{2}a^{3}}{G(M_{1}+M_{2})}}}
U 2 G ( M 1 + M 2 ) = 4 π 2 a 3 {\displaystyle U^{2}{G(M_{1}+M_{2})}=4\pi ^{2}a^{3}}
6.241 ⋅ 10 − 11 [ m 3 k g ⋅ s e c 2 ] {\displaystyle 6.241\cdot 10^{-11}\left[{\frac {m^{3}}{kg\cdot sec^{2}}}\right]}
Failed to parse (unknown function "\V"): {\displaystyle {x_s} = \frac { \Sigma {x_i} [\rho} [\V_i} } { \Sigma \rho \V_i} }