Differentiability: Difference between revisions

Revision as of 17:58, 21 January 2019

@@ Line 24: / Line 24: @@
 var line = board.create('line',[fx0, fx],{strokeColor:'#ff0000',dash:2});
+var f1 = board.create('point', [
+        function() { return x.X(); },
+        function() { return (fx.Y()-fx0.Y())/(fx.X()-fx0.X() + 0.0000001); }],
+        { size: 1, color: black; fixed: true, trace: true});
 var txt = board.create('text', [2, 7, function() {
          return '\\[ \\frac{' +
@@ Line 32: / Line 37: @@
      }]);
-/*
-q2 = board.create('point', [function(){ return q.X()+Math.max(s.Value(),0.01);},
-        function(){ return pol(q.X()+Math.max(s.Value(),0.01));}], {face:'[]',size:2});
-e = board.create('point', [function(){ return q2.X()-q.X();},
-        function(){ return (q2.Y()-q.Y())/(q2.X()-q.X());}], {style:7,name:'Sekantensteigung',trace:true});
-*/
 </jsxgraph>