Écrire des équations

Mathjax

Vous pouvez écrire des équations avec le plugin mathjax, https://fr.wordpress.org/plugins/mathjax-latex/

Voici le rendu:

You may embed latex using a variety of different syntaxes. The shortcode (https://codex.wordpress.org/Shortcode_API) syntax is preferred. So E=mc^2 will work out of the box. This also forces loading of MathJax.

You can use wp-latex syntax, E=mc^2. Parameters can be specified as with wp-latex but will be ignored. This means that MathJax-LaTeX should be a drop-in replacement for wp-latex. Because this conflicts with wp-latex, this behaviour is blocked when wp-latex is present, and must be explicitly enabled in the settings.

Quicklatex

Vous pouvez écrire des équations avec le plugin quicklatex, voici le rendu de l'exemple donné sur le site: https://fr.wordpress.org/plugins/wp-quicklatex/

At first, we sample f(x) in the N (N is odd) equidistant points around x^*

    \[ f_k = f(x_k),\: x_k =x^*+kh, k=</em>-\frac{N-1}{2},\dots,\frac{N-1}{2} \]


where h is some step.
Then we interpolate points {(x_k,f_k)} by polynomial

(1)   \begin{equation*} P_{N-1}(x)=\sum_{j=0}^{N-1}{a_jx^j} \end{equation*}


Its coefficients {a_j} are found as a solution of system of linear equations:

(2)   \begin{equation*} \left{ P_{N-1}(x_k) = f_k\right},\quad k=-\frac{N-1}{2},\dots,\frac{N-1}{2} \end{equation*}


Here are references to existing equations: (1), (2).
Here is reference to non-existing equation (??).

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