2011-08-30 01:28:14 +08:00
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<TeXmacs|1.0.7.11>
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<style|tmdoc>
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<\body>
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<tmdoc-title|Plugins as scripting languages>
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<TeXmacs> provides a few other kinds of additional interfaces to external
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systems in addition to shell-like interfaces. First of all, it is possible
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to insert a so called ``executable switch'' anywhere in the document using
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<menu|Insert|Fold|Executable>.
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For instance, if <name|Maxima> is installed on your system, then
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<menu|Insert|Fold|Executable|Maxima> should yield something like
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<script-input|maxima|default||>. You may enter a<nbsp><name|Maxima>
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expression in the yellow part of this markup, say
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<script-input|maxima|default|diff(x^x,x)|>. Using <shortcut|(kbd-return)>,
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you may now switch back and forth between the unevaluated input and the
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evaluated output <script-output|maxima|default|diff(x^x,x)|<math|x<rsup|x>*<around*|(|log
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2011-08-30 18:47:53 +08:00
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<around*|(|x|)>+1|)>>>. Using <shortcut|(kbd-shift-return)>, you enable
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multi-line input. This kind of executable switches are very useful for
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plugins such as <name|Dra<TeX>>, <name|Eukleides>, <name|Feynmf>,
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2011-08-30 01:28:14 +08:00
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<abbr|etc.>, which are mainly used for the efficient computation and
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insertion of special graphics inside <TeXmacs> documents.
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Some plugins such as <name|Maxima> can even be selected as a <em|scripting
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language> using <menu|Document|Scripts|Maxima>. When doing so, a special
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<menu|Maxima> menu will appear, which allows for many useful operations
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directly on formulas. For instance, when putting the cursor inside the
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formula <math|1+1> and pressing <shortcut|(kbd-return)> or <menu|Evaluate>,
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the formula gets evaluated automatically to yield <math|2>.
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<tmdoc-copyright|1998--2002|Joris van der Hoeven>
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<tmdoc-license|Permission is granted to copy, distribute and/or modify this
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document under the terms of the GNU Free Documentation License, Version 1.1
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or any later version published by the Free Software Foundation; with no
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Invariant Sections, with no Front-Cover Texts, and with no Back-Cover
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Texts. A copy of the license is included in the section entitled "GNU Free
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Documentation License".>
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</body>
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<\initial>
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<\collection>
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<associate|language|english>
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</collection>
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</initial>
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