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enter image description here

I'm trying to do line and $t_b$ exactly as on the image, but couldn't find out how.

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  • 3
    Please clarify your specific problem or provide additional details to highlight exactly what you need. As it's currently written, it's hard to tell exactly what you're asking.
    – Community Bot
    Jul 24, 2023 at 23:22
  • 3
    Since you don't provide any code, nobody can't guess what you did wrong. Also, I don't see any problem in this picture. Vertical alignment seems to be fine, so you should also explain what you want to obtain.
    – Miyase
    Jul 24, 2023 at 23:25
  • 1
    Welcome to TeX.SE.
    – Mico
    Jul 25, 2023 at 0:40
  • 9
    Have you tried \Big\vert_{t_b}?
    – Mico
    Jul 25, 2023 at 0:45

1 Answer 1

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Here the example of the image below.

\documentclass[a4paper,12pt]{article}
\usepackage{amsmath,amssymb}
\begin{document}
\[\delta x_b \times \frac{\partial \mathcal L}{\partial \dot{x}}\Bigr|_{t_b} -0\]
\end{document}

enter image description here

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