Difference between revisions of "Dual lattice"

Revision as of 12:06, 20 June 2016

@@ Line 19: / Line 19: @@
      var num = b1.X() * b2.Y() - b2.X() * b1.Y();
      return [b2.Y() / num,  -b2.X() / num];
-}], {strokeColor: 'red'});
+}], {strokeColor: 'black'});
 w2 = brd.create('arrow', [[0,0], function() {
      var num = b1.X() * b2.Y() - b2.X() * b1.Y();
      return [-b1.Y() / num,  b1.X() / num];
-}], {strokeColor: 'black'});
+}], {strokeColor: 'red', name:"2'", showLabel:true});