cupy.random.standard_exponential

cupy.random.standard_exponential(size=None, dtype=<class 'float'>)

Standard exponential distribution.

Returns an array of samples drawn from the standard exponential distribution. Its probability density function is defined as

\[f(x) = e^{-x}.\]

Parameters:

• size (int or tuple of ints) – The shape of the array. If None, a zero-dimensional array is generated.
• dtype – Data type specifier. Only numpy.float32 and numpy.float64 types are allowed.

Returns:

Samples drawn from the standard exponential distribution.

Return type:

cupy.ndarray

See also

numpy.random.standard_exponential