Difference between revisions of "Dual lattice"

From JSXGraph Wiki
Jump to: navigation, search
Line 19: Line 19:
 
     var num = b1.X() * b2.Y() - b2.X() * b1.Y();
 
     var num = b1.X() * b2.Y() - b2.X() * b1.Y();
 
     return [b2.Y() / num,  -b2.X() / num];
 
     return [b2.Y() / num,  -b2.X() / num];
}], {strokeColor: 'black'});
+
}], {strokeColor: 'black', name:"1'", withLabel:true});
  
 
w2 = brd.create('arrow', [[0,0], function() {
 
w2 = brd.create('arrow', [[0,0], function() {

Revision as of 12:08, 20 June 2016