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Converse; Durrell (1911). Plane and spherical trigonometry. C. E. Merrill Co. p. 12. «Inverse Use of a Table of Logarithms; that is, given a logarithm, to find the number corresponding to it, (called its antilogarithm) ...»
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Beebe, Nelson H. F. (9 de julio de 2002). «Computation of expm1 = exp(x)−1». Salt Lake City, Utah, USA: Department of Mathematics, Center for Scientific Computing, University of Utah. Consultado el 2 de noviembre de 2015.