# cupy.random.exponential¶

cupy.random.exponential(scale, size=None, dtype=<class 'float'>)[source]

Exponential distribution.

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

$f(x) = \frac{1}{\beta}\exp (-\frac{x}{\beta}).$
Parameters: scale (float or array_like of floats) – The scale parameter $$\beta$$. 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. Samples drawn from the exponential distribution. cupy.ndarray