For a system of equations, I would like to have a notation with a left curly bracket. Usually, I am using


But this makes a strange empty space between the "=" and the right-hand sides which i do not like since.

Is there a way to improve this easily?

  • You should consider the package systeme. – F. Pantigny Feb 28 at 11:17
  • Welcome to TeX.SE. – Mico Feb 28 at 11:27
  • @F.Pantigny This seems to be nice. However, if I have, for example, a left hand side as $z_k'$ it is not displayed. – C.D. Feb 28 at 11:34

I suggest you (a) employ an aligned environment instead of an array enviroment and (b) change both instances of =& to &=.

enter image description here

\usepackage{amsmath} % for 'aligned' env.

\left\{ \begin{aligned} 
  f(x) &= x^2+\ldots\\
  g(x) &= x^3+\ldots
\end{aligned} \right.
  • 2
    Fantastic, thanks a lot! – C.D. Feb 28 at 11:36

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