Abstract
To fill a notebook with the formulæ that happen to have been of most use to himself and the comments that he has found most illuminating is a pleasant and profitable task to anyone who performs it, but the result cannot have value of a comparable kind to any reader. To say that it is hard to know to whom to recommend Mr. Percival's discursive jottings, which range from the multiplication of polynomials to the solution of partial differential equations, is not to deny that some of his remarks were worth making. On the other hand, the teacher who expects a protest against the prevalent inaccuracy in presenting the integral of 1/x will be disappointed to find only the usual formula, and inverse circular functions are said to be essentially acute angles.
Mathematical Facts and Formul".
By A. S. Percival. Pp. v + 125. (London, Glasgow and Bombay: Blackie and Son, Ltd., 1933.) 4s. 6d. net.
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N., E. Mathematical Facts and Formulæ . Nature 133, 84–85 (1934). https://doi.org/10.1038/133084c0
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DOI: https://doi.org/10.1038/133084c0
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