-1

Just for fun. Can you make this equation as pretty as possible?

\documentclass{article}
%
\usepackage{amsmath}
\usepackage{palatino}
\usepackage{mathpazo}
\usepackage{bm}
%

\begin{document}

    $\delta\int_{t_1}^{t_2}\mathcal{L}(\bm{q},\bm{\dot{q}})dt=0$

\end{document}

It should be pretty when printed on a whole page. So be careful to the spacings between the symbols.

9
2

Throw away that unspeakably ugly (IMHO) font, and sort out the horizontal and vertical spacing...

The end result is entirely subjective, of course.

\documentclass{article}
%
\usepackage{amsmath}
\usepackage{erewhon}
\usepackage[utopia,cmintegrals]{newtxmath}
\usepackage{bm}
%

\begin{document}

    $\displaystyle\delta\mkern -8mu \int_{t_1}^{\mkern 1mu t_2} \mkern -15mu \mathcal{L}(\bm{q},\bm{\dot{q}})\mkern 2mu dt=0$

\end{document}

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