QuickLatex $$ display black bloc

  • The example provided with the plugin gives a partially wrong result

    [latexpage]
At first, we sample $f(x)$ in the $N$ ($N$ is odd) equidistant points around $x^*$:
\[
   f_k = f(x_k),\: x_k = x^*+kh,\: k=-\frac{N-1}{2},\dots,\frac{N-1}{2}
\]

$ 5 \times 3$ 

\[\; \; \; \begin{cases}
u_0 = 1 \\
\forall n \in \marhbb{N}, u_{n+1} = u_n + 2 \\
\end{cases} \]

\[ \; \; \forall n \in \marhbb{N}, u_{n+1} = u_n + 2 \]

    Display :

    At first, we sample f(x) in the ?? (?? is odd) equidistant points around ?????? :

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