Constants

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Numpy provides plenty of constants.

Questions to David Rotermund

The most important ones

numpy.inf IEEE 754 floating point representation of (positive) infinity.
numpy.nan IEEE 754 floating point representation of Not a Number (NaN).
numpy.e Euler’s constant, base of natural logarithms, Napier’s constant.​ e = 2.71828182845904523536028747135266249775724709369995…
numpy.newaxis A convenient alias for None, useful for indexing arrays
numpy.pi pi = 3.1415926535897932384626433…