How to show a dipole of a molecule?

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Andrew Orry

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Jul 9, 2020, 8:55:48 PM7/9/20
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Q.
How to show a dipole of a molecule?
A.
These commands will calculate the charge and then display the dipole:

v = Charge( a_//* )* Xyz( a_//* ) - Sum(Charge(a_//*)  )*Mean( Xyz(a_//* ) )
ct = Mean(  Xyz(a_//* ) )
arrow1 = Grob( "ARROW"  + 20 , (ct-v/2) //  (ct +v/2))
display arrow1

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