[latex]
\begin{equation}
\begin{aligned}
\alpha(m)
=
\frac{id}{i^{(m)}d^{(m)}}
&&\text{and}&&
\beta(m)
=
\frac{i-i^{(m)}}{i^{(m)}d^{(m)}}
\end{aligned}
\end{equation}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\[
\quicklatex{color=red size=25}
\boxed{f(x)=\int_1^{\infty}\frac{1}{x^2}\,\mathrm{d}x=1}
\]
\pagecolor{red}
[/latex]