altenc http://www.openmath.org/cd/altenc.ocd 2003-04-01 official 2001-03-12 2 0 transc1 A CD of alternative encoding symbols This CD is motivated in part by a desire to maintain compatibility with the MathML semantics element, In order for it to be possible for OpenMath to express symbols in an alternative encoding (this facilitates the exact translation and representation of objects) we use the OpenMath attribution nodes (which performs a similar role to the MathML semantics nodes). The formats and descriptions of common syntaxes are held in this CD; at present this only includes LaTeX and MathML. Alternative encodings in OpenMath are dealt with by using OMATTR symbols together with the alternative encoding placed in a string. The string encoding must be valid XML, and so non-XML valid characters must themselves be encoded as suggested in "Draft of the OpenMath Standard". For alternative encodings to be represented in OpenMath, one must define a symbol to describe the encoding. MathML_encoding A symbol which heads a piece of MathML encoding in an attribution. The MathML encoding is an XML encoding, and the details may be found at: http://www.w3.org/Math/Overview.html LaTeX_encoding A symbol which heads a piece of LaTeX encoding in an attribution. <sin> 1.5 </sin> \sin(1.5)