Ecrire un système d'équation

[Jacques]

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Bonjour,

Sauriez-vous comment écrire un système d’équations numérotées le tout précédé d’une accolade devant (à gauche) ?

Merci d’avance.

[jm.evers]

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in latex mode (math-with-images) the automatic equation numbering is easy…use

\begin{equation}
    f(x) = x^3 
    g(x) = x^4
    h(x) = x^5
  \end{equation}

however in wims mathml this is not -yet- supported…you have to manually add the numbering

So in wims_mathml use something like

\left\{
 \begin{array}{lclr}
   f(x) & = & \sin(x^{2}) & (1) \\
   h(x) & = & \sin\left(x^{\frac{1}{2}}\right) & (2) \\
   i(x) & = & \sin(2x) & (3) \\
   j(x) & = & \sin(3\cdot x) & (4) \\
   k(x) & = & \sin(\sqrt{x}) & (5) 
 \end{array}
\right.

hope this helps…
Joke

• Cette réponse a été modifiée le il y a 6 années par jm.evers.

[Jacques]

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J’ai essayé de mettre ce code dans un exercice mais visiblement, quelque chose doit m’échapper…

En tous cas, merci beaucoup de votre réponse.

[jm.evers]

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Sorry, my answer was not complete…If you use createxo, you could try this (avoiding the unbalanced brackets error)

\statement{
\(
\begin{cases}
 \begin{array}{lclr}
   f(x) & = & \sin(x) & (1) \\
   h(x) & = & \sin(x) & (2) \\
   i(x) & = & \sin(x) & (3) \\
   j(x) & = & \sin(x) & (4) \\
   k(x) & = & \sin(x) & (5) 
 \end{array}
\end{cases}
)
}

joke

[bernadette]

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In OEF the solution with array is OK if you replace by \lbrace
or \lpar or \lbracket according to the type of parenthesis
and of course \rbrace, etc for the right parenthesis if useful.

\statement{
\(\left\lbrace
 \begin{array}{lclr}
   f(x) & = & \sin(x^{2}) & (1) \\
   h(x) & = & \sin\left(x^{\frac{1}{2}}\right) & (2) \\
   i(x) & = & \sin(2x) & (3) \\
   j(x) & = & \sin(3\cdot x) & (4) \\
   k(x) & = & \sin(\sqrt{x}) & (5) 
 \end{array}
\right.
\)
}

[Auteur]

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