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\begin{equation}
\begin{split}
\Tilde{B_{k}^{ij}} = f(B^{i})_{k} + (1 - \lambda) f(B^{j})_{k} \\
\Tilde{y^{ij}} = \lambda y^{i} + (1 - \lambda) y^{j}
\end{split}
\end{equation}

This is my current equation. Unfortunately, the tilde is not directly placed on the B, but instead floats above the supercript. How to fix this?

Tilde example

2
  • Welcome to tex.sx. The problem is in the input. The tilde should be placed above only the letter it modifies: \Tilde{b}_{k}... or \Tilde{y}^{ij}. Commented May 19, 2023 at 13:47
  • 2
    Note that \Tilde and \tilde are exactly the same.
    – egreg
    Commented May 19, 2023 at 15:08

1 Answer 1

2

Welcome to TeX.SE!

Something like this?

enter image description here

\documentclass{article}
\usepackage{amsmath}

\begin{document}
    \begin{equation}
\begin{split}
\Tilde{B}_{k}^{ij} = f(B^{i})_{k} + (1 - \lambda) f(B^{j})_{k} \\
\Tilde{y}^{ij} = \lambda y^{i} + (1 - \lambda) y^{j}
\end{split}
    \end{equation}
\end{document}

Observe, where are } : \Tilde{B}_{k}^{ij} instead of \Tilde{B_{k}^{ij}}.

BTW, it will be helpful, if you would extend your code fragment to complete small document.

1
  • Thank you for the welcome and the nice answer! That's exactly what I was looking for. I will keep in mind having a MWE. Commented May 19, 2023 at 14:42

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