Inverse Composition Rules: Difference between revisions

From JSXGraph Wiki
← Older editNewer edit →
No edit summary
No edit summary
Line 13: Line 13:
  <tr>
  <tr>
   <td>&nbsp;</td>
   <td>&nbsp;</td>
   <td><input type="radio" name="f" value="sin" checked onChange="change(this)"></td>
   <td><input type="radio" name="f" value="sin" checked onChange="change(f,this)"></td>
   <td><input type="radio" name="f" value="cos"        onChange="change(this)"></td>
   <td><input type="radio" name="f" value="cos"        onChange="change(f,this)"></td>
   <td><input type="radio" name="f" value="tan"        onChange="change(this)"></td>
   <td><input type="radio" name="f" value="tan"        onChange="change(f,this)"></td>
   <td><input type="radio" name="f" value="square"      onChange="change(this)"></td>
   <td><input type="radio" name="f" value="square"      onChange="change(f,this)"></td>
   <td><input type="radio" name="f" value="sinh"        onChange="change(this)"></td>
   <td><input type="radio" name="f" value="sinh"        onChange="change(f,this)"></td>
   <td><input type="radio" name="f" value="exp"        onChange="change(this)"></td>
   <td><input type="radio" name="f" value="exp"        onChange="change(f,this)"></td>
  </tr>
  </tr>
  <tr>
  <tr>
Line 31: Line 31:
  <tr>
  <tr>
   <td>&nbsp;</td>
   <td>&nbsp;</td>
   <td><input type="radio" name="g" value="asin" checked></td>
   <td><input type="radio" name="g" value="asin" checked onChange="change(g,this)"></td>
   <td><input type="radio" name="g" value="acos"></td>
   <td><input type="radio" name="g" value="acos"         onChange="change(g,this)></td>
   <td><input type="radio" name="g" value="atan"></td>
   <td><input type="radio" name="g" value="atan"         onChange="change(g,this)></td>
   <td><input type="radio" name="g" value="sqrt"></td>
   <td><input type="radio" name="g" value="sqrt"         onChange="change(g,this)></td>
   <td><input type="radio" name="g" value="asinh"></td>
   <td><input type="radio" name="g" value="asinh"       onChange="change(g,this)></td>
   <td><input type="radio" name="g" value="log"></td>
   <td><input type="radio" name="g" value="log"         onChange="change(g,this)></td>
  </tr>
  </tr>
</table>
</table>
Line 45: Line 45:
var f, g;
var f, g;


var change = function(obj) {
var change = function(func,obj) {
  var t = obj.value;  
  var t = obj.value;  
  alert(t);
  if (t=='sin') { func = function(x) { return Math.sin(x); }
else if (t=='cos') { func = function(x) { return Math.cos(x); }
else if (t=='tan') { func = function(x) { return Math.tan(x); }
else if (t=='square') { func = function(x) { return x*x; }
else if (t=='sinh') { func = function(x) { return brd.sinh(x); }
else if (t=='exp') { func = function(x) { return Math.exp(x); }
 
else if (t=='asin') { func = function(x) { return Math.asin(x); }
else if (t=='acos') { func = function(x) { return Math.acos(x); }
else if (t=='atan') { func = function(x) { return Math.atan(x); }
else if (t=='sqrt') { func = function(x) { return Math.sqrt(x); }
else if (t=='asinh') { func = function(x) { return Math.log(x+Math.sqrt(1+x*x)); }
else if (t=='log') { func = function(x) { return Math.log(x); }
 
}
}
                
                

Revision as of 13:29, 19 June 2009

f(x) sin(x) cos(x) tan(x) x2 sinh(x) exp(x)
 
g(x) arcsin(x) arccos(x) arctan(x) √(x) arcsinh(x) log(x)
  The underlying JavaScript code
Retrieved from "http://jsxgraph.org/wiki/index.php?title=Inverse_Composition_Rules&oldid=2259"