Sure, here is the edited description with all links and associated text removed: --- Learn how to solve proportions. Two ratios are said to be proportional when the two ratios are equal. Thus, ...
IF, in Prof. Bateman's example, we take then and may be regarded as independent of each other, and the variational equations are It is true that the equation can be derived by adding these two ...
IN a review in NATURE 1 it is stated that the equation of conduction of heat can be regarded only as a limiting case of an equation arising in the calculus of variations. A successful attempt has been ...
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