Difference between revisions of "Dual lattice"
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A WASSERMANN (talk | contribs) |
A WASSERMANN (talk | contribs) |
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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: ' | + | }], {strokeColor: 'black'}); |
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: ' | + | }], {strokeColor: 'red', name:"2'", showLabel:true}); |
