Sollya User's Manual

Name:

printxml prints an expression as an MathML-Content-Tree

Library names:

void sollya_lib_printxml(sollya_obj_t) void sollya_lib_printxml_newfile(sollya_obj_t, sollya_obj_t) void sollya_lib_printxml_appendfile(sollya_obj_t, sollya_obj_t)

Usage:

printxml(expr) : function -> void printxml(expr) > filename : (function, string) -> void printxml(expr) > > filename : (function, string) -> void

Parameters:

expr represents a functional expression
filename represents a character sequence indicating a file name

Description:

printxml(expr) prints the functional expression expr as a tree of MathML Content Definition Markups. This XML tree can be re-read in external tools or by usage of the readxml command.

If a second argument filename is given after a single ">", the MathML tree is not output on the standard output of Sollya but if in the file filename that get newly created or overwritten. If a double ">" is given, the output will be appended to the file filename.

Example 1:

> printxml(x + 2 + exp(sin(x)));

   <?xml version="1.0" encoding="UTF-8"?>
   
   
   <?xml-stylesheet type="text/xsl" href="http://sollya.org/mathmlc2p-web.xsl"?>
   <?xml-stylesheet type="text/xsl" href="mathmlc2p-web.xsl"?>
   

   <math xmlns="http://www.w3.org/1998/Math/MathML">
   <semantics>
   <annotation-xml encoding="MathML-Content">
   <lambda>
   <bvar><ci> x </ci></bvar>
   <apply>
   <apply>
   <plus/>
   <apply>
   <plus/>
   <ci> x </ci>
   <cn type="integer" base="10"> 2 </cn>
   </apply>
   <apply>
   <exp/>
   <apply>
   <sin/>
   <ci> x </ci>
   </apply>
   </apply>
   </apply>
   </apply>
   </lambda>
   </annotation-xml>
   <annotation encoding="sollya/text">(x + 1b1) + exp(sin(x))</annotation>
   </semantics>
   </math>

Example 2:

> printxml(x + 2 + exp(sin(x))) > "foo.xml";

Example 3:

> printxml(x + 2 + exp(sin(x))) >> "foo.xml";