/usr/share/doc/axiom-doc/hypertex/outputfunctions.xhtml

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 <head>
  <meta http-equiv="Content-Type" content="text/html" charset="us-ascii"/>
  <title>Axiom Documentation</title>
  <style>

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     color:blue;
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<![CDATA[
     // This is a hash table of the values we've evaluated.
     // This is indexed by a string argument. 
     // A value of 0 means we need to evaluate the expression
     // A value of 1 means we have evaluated the expression
   Evaled = new Array();
     // this says we should modify the page
   hiding = 'show';
     // and this is the id of the div tag to modify (defaulted)
   thediv = 'mathAns';
     // commandline will mark that its arg has been evaled so we don't repeat
   function commandline(arg) {
     Evaled[arg] = 0;  // remember that we have set this value
     thediv='ans'+arg; // mark where we should put the output
     var ans = document.getElementById(arg).value;
     return(ans);
   }
   // the function only modifies the page if when we're showing the
   // final result, otherwise it does nothing.
   function showanswer(mathString,indiv) {
     if (hiding == 'show') { // only do something useful if we're showing
       indiv = thediv;  // override the argument so we can change it
       var mystr = mathString.split("</div>");
       for (var i=0; i < mystr.length; i++) {
         if (mystr[i].indexOf("mathml") > 0) {
           var mymathstr = mystr[i].concat("</div>");
         }
       }
       // this turns the string into a dom fragment
       var mathRange = document.createRange();
       var mathBox=
               document.createElementNS('http://www.w3.org/1999/xhtml','div');
       mathRange.selectNodeContents(mathBox);
       var mymath = mathRange.createContextualFragment(mymathstr);
       mathBox.appendChild(mymath);
       // now we need to format it properly
       // and we stick the result into the requested div block as a child.
       var mathAns = document.getElementById(indiv);
       mathAns.removeChild(mathAns.firstChild);
       mathAns.appendChild(mathBox);
     }
   }
   // this function takes a list of expressions ids to evaluate
   // the list contains a list of "free" expression ids that need to
   // be evaluated before the last expression. 
   // For each expression id, if it has not yet been evaluated we
   // evaluate it "hidden" otherwise we can skip the expression.
   // Once we have evaluated all of the free expressions we can
   // evaluate the final expression and modify the page.
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     var placename = arg.pop();      // last array val is real
     var mycnt = arg.length;         // remaining free vars
       // we handle all of the prerequired expressions quietly
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     for (var i=0; i<mycnt; i++) {   // for each of the free variables
       if (Evaled[arg[i]] == null) { // if we haven't evaled it
         Evaled[arg[i]] = 0;         // remember we evaled it
         makeRequest(arg[i]);        // initialize the free values
       }
     }
       // and now we start talking to the page again
     hiding = 'show';                // we want to show this
     thediv = 'ans'+placename;       // at this div id
     makeRequest(placename);         // and we eval and show it
   }
]]>
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   //alert(command);
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   return(false);
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   return(false);
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   //alert(command);
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   http_request.onreadystatechange = handleResponse;
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   return(false);
 }
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   if (http_request.status == 200) {
    showanswer(http_request.responseText,'mathAns');
   } else
   {
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   }
  }
 }

  </script>
 </head>
 <body>
  <div align="center"><img align="middle" src="doctitle.png"/></div>
  <hr/>
  <div align="center">Output Functions</div>
  <hr/>
A number of operations exist for specifying how numbers of type
<a href="db.xhtml?Float">Float</a> are to be displayed. By default,
spaces are inserted every ten digits in the output for readability.
(Not that you cannot include spaces in the input form of a floating
point number, though you can use underscores.)

Output spacing can be modified with the 
<a href="dbopoutputspacing.xhtml">outputSpacing</a> operation. This
inserts no spaces and then displays the value of x.
<ul>
 <li>
  <input type="submit" id="p1" class="subbut" 
    onclick="makeRequest('p1');"
    value="outputSpacing 0; x:=sqrt 0.2" />
  <div id="ansp1"><div></div></div>
 </li>
</ul>
Issue this to have the spaces inserted every 5 digits.
<ul>
 <li>
  <input type="submit" id="p2" class="subbut" 
    onclick="handleFree(['p1','p2']);"
    value="outputSpacing 5; x" />
  <div id="ansp2"><div></div></div>
 </li>
</ul>
By default, the system displays floats in either fixed format or
scientific format, depending on the magnitude of the number.
<ul>
 <li>
  <input type="submit" id="p3" class="subbut" 
    onclick="handleFree(['p1','p3']);"
    value="y:=x/10^10" />
  <div id="ansp3"><div></div></div>
 </li>
</ul>
A particular format may be requested with the operations
<a href="dbopoutputfloating.xhtml">outputFloating</a> and
<a href="dbopoutputfixed.xhtml">outputFixed</a>.
<ul>
 <li>
  <input type="submit" id="p4" class="subbut" 
    onclick="handleFree(['p1','p4']);"
    value="outputFloating(); x" />
  <div id="ansp4"><div></div></div>
 </li>
 <li>
  <input type="submit" id="p5" class="subbut" 
    onclick="handleFree(['p1','p5']);"
    value="outputFixed(); y" />
  <div id="ansp5"><div></div></div>
 </li>
</ul>
Additionally, you can ask for n digits to be displayed after the 
decimal point.
<ul>
 <li>
  <input type="submit" id="p6" class="subbut" 
    onclick="handleFree(['p1','p3','p6']);"
    value="outputFloating 2; y" />
  <div id="ansp6"><div></div></div>
 </li>
 <li>
  <input type="submit" id="p7" class="subbut" 
    onclick="handleFree(['p1','p7']);"
    value="outputFixed 2; x" />
  <div id="ansp7"><div></div></div>
 </li>
</ul>
The <a href="dbopoutputgeneral.xhtml">outputGeneral</a> function resets
the output printing to the default behavior.
<ul>
 <li>
  <input type="submit" id="p8" class="subbut" 
    onclick="makeRequest('p8');"
    value="outputGeneral()" />
  <div id="ansp8"><div></div></div>
 </li>
</ul>
 </body>
</html>
axiom-hypertex-data 20120501-8 / usr / share / doc / axiom-doc / hypertex / outputfunctions.xhtml
