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Learning SciPy for Numerical and Scientific Computing Second Edition

You're reading from  Learning SciPy for Numerical and Scientific Computing Second Edition

Product type Book
Published in Feb 2015
Publisher Packt
ISBN-13 9781783987702
Pages 188 pages
Edition 1st Edition
Languages

The evaluation of special functions


The scipy.special module contains numerically stable definitions of useful functions. Most often, the straightforward evaluation of a function at a single value is not very efficient. For instance, we would rather use a Horner scheme (http://en.wikipedia.org/wiki/Horner%27s_method) to find the value of a polynomial at a point than use the raw formula. The NumPy and SciPy modules ensure that this optimization is always guaranteed with the definition of all its functions, whether by means of Horner schemes or with more advanced techniques.

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