Dual lattice: Difference between revisions
From JSXGraph Wiki
A WASSERMANN (talk | contribs) No edit summary |
A WASSERMANN (talk | contribs) No edit summary |
||
(One intermediate revision by the same user not shown) | |||
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', name:"1'", withLabel:true, label:{ | }], {strokeColor: 'black', name:"1'", withLabel:true, label:{position:'rt'}}); | ||
w2 = brd.create('arrow', [[0,0], function() { | w2 = brd.create('arrow', [[0,0], function() { | ||
var num = b1.X() * b2.Y() - b2.X() * b1.Y(); | var num = b1.X() * b2.Y() - b2.X() * b1.Y(); | ||
return [-b1.Y() / num, b1.X() / num]; | return [-b1.Y() / num, b1.X() / num]; | ||
}], {strokeColor: 'red', name:"2'", withLabel:true}); | }], {strokeColor: 'red', name:"2'", withLabel:true, label:{position:'rt'}}); | ||