PI: formula
The purpose of a formula is to fetch a formula in Image-, LaTeX- or MathML-form.
The former two is presented as img-elements, while the latter is presented as MathML according to HTML5.
LaTeX-formulas are translated to img on the fly with either WXT's internal functions
based on JLaTeXMath
[14]
or with Google Charts Formulas
[15]
.
<?_wxt formula id=""?>
The parameters are:
|
id (mandatory) |
The formula we want to fetch. The formula is supposed to be defined in
a formula file,
Formulas
, or an odtformula file ,
ODTFormulas
.
Alternatively this value will identify the formula introduced in sourse or location, se below.
|
|
type (optional) |
This is mandatory if source or location is set.
Possible values are image, latex, google or mathml.
|
|
location (optional) |
The location may point to a file of one out of the 4 types:
An image file (png,gif,jpg), a file containing a LaTeX-expression, a file containing LaTex for google or a file
containing a MathMl-formula.
|
|
source (optional) |
The source may contain LaTeX description of a formula according to the version used by
Google Charts Features
[16]
(type: google) or LaTex as handled by
JLaTeXMath
[14]
(type: latex). It is sometimes possible, but not adviced to include mathml-source
|
|
subtext (optional) |
Any string describing the formula. Defaults to id.
|
|
color (optional) |
Must be specified as 6 hexdigits (#FF0000)
|
|
backcolor (optional) |
Must be specified as 6 hexdigits (#FF0000)
|
|
size (optional) |
Applies to TeX-formulas. You may spesify a size for LaTex or google-Latex:
tiny, small,large or huge.
|
|
style (optional) |
Any CSS that will apply to the generated image-element.
|
If both source and location is set, source is used.
More about formulas in
Formulas
.
Examples:
<div>
<?_wxt formula id="_formula1"?>
</div>
<div>
<?_wxt formula id="f2" type="latex" size="large"
source="B(t)=\sum_{i=0}^{n}B_{i}^{n}t^{i}(1-t)^{n-i}P_{_{i}}"?>
</div>
<div>
<?_wxt formula id="f3" size="small" color="#FFFF00"?>
</div>