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## WordPressでTeX数式を利用する (2)

[latexpage]

WP QuickLaTeX　というプラグインを使ってみた。これもなかなかよさそう。

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

$f_k = f(x_k),\: x_k = x^*+kh,\: k=-\frac{N-1}{2},\dots,\frac{N-1}{2}$
where $h$ is some step.
Then we interpolate points $\{(x_k,f_k)\}$ by polynomial
\begin{equation} \label{eq:poly}
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:
\begin{equation} \label{eq:sys}
\end{equation}
Here are references to existing equations: (\ref{eq:poly}), (\ref{eq:sys}).
Here is reference to non-existing equation (\ref{eq:unknown}).

こんなのもできるらしい。

\begin{tikzpicture}
[+preamble]
\usepackage{tikz}
\usepackage{pgfplots}
[/preamble]
\begin{axis}
\end{axis}
\end{tikzpicture}

### 6 Responses to “WordPressでTeX数式を利用する (2)”

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