So I want an \alpha below the word 'minimise' as in this paper in equation 5 and 6. image :

1 Answer 1


Welcome to TeX.SE! You could use

\frametitle{A slide}
\[\minimize_{\{\alpha\}} \|\boldsymbol{\mathrm{i}}-\boldsymbol{\Phi\mathcal{D}\alpha}\|_2
+\lambda \|\boldsymbol{\alpha}\|_1\]
$\displaystyle\minimize_{\{\alpha\}} \|\boldsymbol{\mathrm{i}}-\boldsymbol{\Phi\mathcal{D}\alpha}\|_2
+\lambda \|\boldsymbol{\alpha}\|_1$

enter image description here

Notice that none of this is specific to beamer.

  • 1
    Nice answer! One tiny comment: you don't need \usepackage{amsmath}, beamer already loads it. Jan 18, 2019 at 9:07
  • @samcarter Thanks! That's correct. (I still want to keep it because I mention that this is not specific to beamer.)
    – user121799
    Jan 18, 2019 at 15:06
  • 1
    Oh, right! Then it makes sense to keep it Jan 18, 2019 at 15:09

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