A closely spaced pair of nonsymmetrically opposing rectangular poles is reduced to a combination of opposing corners; the mutual forces between the poles can then be written in terms of the simple direct formulas obtained for the two‐corner problem. The results obtained involve only elementary functions and do not require implicit solution of nonalgebraic equations.

Franck‐v. Mises, Differentialgleichungen der Physik II (Vieweg, Braunschweig, 1935), Chap. XV, Sec. 5, p. 664;
F. Ollendorff, Berechnung magnetischer Felder (Springer, Wien, 1952), Sec. II. 9, p. 154.
J. A. Stratton, Electromagnetic Theory (McGraw‐Hill, New York, 1941), Sec. 2.29, p. 158.
F. Ollendorff, in Ref. 1, p. 296.
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