For the Helmholtz Differential Equation to be Separable in a coordinate system, the Scale Factors in the Laplacian

(1) |

(2) |

(3) |

**References**

Morse, P. M. and Feshbach, H. *Methods of Theoretical Physics, Part 1*. New York: McGraw-Hill, p. 510, 1953.

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1999-05-25