An Approximation to the Probability Integral


REFERRING to Prof. H. C. Plummer's letter on “An Approximation to the Probability Integral,” published in NATURE of October 25, the following alternative way of representing the normal error function by simple approximation may be of interest. The original demonstration of this has been given by me in Physical Department Paper No. 8, “A Method of Curve Fitting.”

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KRICHEWSKY, S. An Approximation to the Probability Integral. Nature 115, 49–50 (1925) doi:10.1038/115049b0

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