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- <h2 class="section">3.9 External Library Maintenance</h2>
- <p>External mathematical library functions such as those documented in
- <a href="External-Libraries.html#External-Libraries">External Libraries</a> that are invoked from virtual code by the
- <code>library</code> combinator (<a href="Library-combinator.html#Library-combinator">Library combinator</a>) are also
- accessible from C by way of a uniform API implemented by the functions
- declared in <code>libfuns.h</code>. This interface applies even to libraries
- <a name="index-Fortran-1"></a>
- implemented in Fortran such as <code>minpack</code>. This section briefly
- documents the functions in <code>libfuns.h</code> and sets out some
- recommeded guidelines for developers wishing to add support for other
- external libraries.
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- <tr><td align="left" valign="top"><a href="Calling-existing-library-functions.html#Calling-existing-library-functions">3.9.1 Calling existing library functions</a></td><td> </td><td align="left" valign="top">
- </td></tr>
- <tr><td align="left" valign="top"><a href="Implementing-new-library-functions.html#Implementing-new-library-functions">3.9.2 Implementing new library functions</a></td><td> </td><td align="left" valign="top">
- </td></tr>
- <tr><td align="left" valign="top"><a href="Working-around-library-misfeatures.html#Working-around-library-misfeatures">3.9.3 Working around library misfeatures</a></td><td> </td><td align="left" valign="top">
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