1. Jun 22, 2016 #1

   entropy1

   

   What does ∇ signify in QM?

    

   entropy1, Jun 22, 2016
2. 
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3. Jun 22, 2016 #2

   Paul Colby

   

   Gold Member

   I've always read it ##\nabla = (\partial_x, \partial_y, \partial_z)## or gradient.

    

   Paul Colby, Jun 22, 2016

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