Numpy Constants

Description

NumPy has several constants we can make use of:

  • numpy.PINF: a floating point representation of positive infinity
  • numpy.NINF: a floating point representation of negative infinity
  • numpy.e: Euler's constant
  • numpy.euler_gamma: Euler's gamma constant
  • numpy.pi: Pi.

While age has built in constants for pi, infinity and e, it is better to use the NumPy constants when writing cells in NumPy, as certaint NumPy functions such as numpy.isinf do not function with sage constants.

Sage Cell

Code

import numpy as np
print np.PINF
print np.NINF
print np.e
print np.euler_gamma
print np.pi

Options

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Date: 06 Apr 2019 18:41

Submitted by: Zane Corbiere

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