\magnification=\magstep2


$$
E \quad = \quad mc^2
$$

$$
\eqalign{
1{\rm \ TeV\ }  \quad &= \quad 10^3 {\rm \ GeV \ } \cr 
                      &=        \quad 10^6 {\rm \ MeV \ } \cr
                      &=        \quad 10^9 {\rm \ keV \ } \cr
                      &=        \quad 10^{12} {\rm \ eV \ } \cr
}
$$

\bye
