# 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 [-b1.Y() / num, b1.X() / num]; | return [-b1.Y() / num, b1.X() / num]; | ||

− | }], {strokeColor: 'red', name:"2'", | + | }], {strokeColor: 'red', name:"2'", withLabel:true}); |