Explicit expressions of the nth gradient of 1/r
- 1 June 1984
- journal article
- Published by AIP Publishing in Journal of Mathematical Physics
- Vol. 25 (6) , 1721-1724
- https://doi.org/10.1063/1.526349
Abstract
Explicit expressions of the nth gradient tensor and partial derivatives of the function 1/r are given, in the absolute and in the local bases associated, respectively, with the Cartesian and the spherical coordinates of space. They may be used in various multipolar developments of r−1 interaction energies.Keywords
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