[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}
]
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}
left{ P_{N-1}(x_k) = f_kright},quad k=-frac{N-1}{2},dots,frac{N-1}{2}
end{equation}
Here are references to existing equations: (ref{eq:poly}), (ref{eq:sys}).
Here is reference to non-existing equation (ref{eq:unknown}).

For the display environments, equation numbering is automatic, but this may be overridden and the number set explicitly with tag{..} placed within the display expression. A number of options may be set for an expression with attribute tags such as size, color, background, align, as arguments of quicklatex{} placed within the expression: renders with green font of 25 pixels height: Compilation of an expression may be suppressed, showing instead the LaTeX source, by preceding the expression with a !. For mathematical graphs you may use tikzpicture and pgfplots, e.g. : compiles to Realized with WP QuickLaTeX.

## 3 comments on “Latex Support”

Wolfgang Huang wrote (19/06/2014):

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We have been asked to include LaTeX support for our blog. And here it is!How nice of you; thanks a bunch.

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Activate LaTeX on a comment with the shortcode [latexpage]. Then you may insert LaTeX expressions directly in the text by surrounding them with $..$ or place them displayed with [..] […]Let me try that (hopefully contributing something worthwhile ;):

[latexpage]

$ a circ f = f circ b , imples , forall j, k in mathbb Z : a circ (a^j circ f circ b^k) = (a^j circ f circ b^k) circ b $.

p.s.

Comment preview test:

Beatrice Lugger wrote (24/06/2014; elsewhere):

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[…] there’s a great difference between writing scientific papers or than composing articles and commentaries for newspapers and magazinesFrank Wappler wrote [16/07/2014 at 14:27]:

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[latexpage]>

$ a circ f = f circ b , imples , forall j, k in mathbb Z : a circ (a^j circ f circ b^k) = (a^j circ f circ b^k) circ b $.Oops – there are two “i”s in “implies”:

[latexpage]

$ a circ f = f circ b , implies , forall j, k in mathbb Z : a circ (a^j circ f circ b^k) = (a^j circ f circ b^k) circ b $.Frank Wappler wrote [16/07/2014 at 14:27]:

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[latexpage]>

$ a circ f = f circ b , imples , forall j, k in mathbb Z : a circ (a^j circ f circ b^k) = (a^j circ f circ b^k) circ b $.Oops – there are two “i”s in “implies”:

[latexpage]

$ a circ f = f circ b , implies , forall j, k in mathbb Z : a circ (a^j circ f circ b^k) = (a^j circ f circ b^k) circ b $.Comments are closed.