brainpy.math.random.standard_exponential

brainpy.math.random.standard_exponential#

brainpy.math.random.standard_exponential(size=None, key=None)[source]#

Draw samples from the standard exponential distribution.

standard_exponential is identical to the exponential distribution with a scale parameter of 1.

Parameters:: size (int or tuple of ints, optional) – Output shape. If the given shape is, e.g., (m, n, k), then m * n * k samples are drawn. Default is None, in which case a single value is returned.
Returns:: out – Drawn samples.
Return type:: float or ndarray

Examples

Output a 3x8000 array:

>>> n = bm.random.standard_exponential((3, 8000))