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    stats_rand_gen_exponential

    (PECL stats >= 1.0.0)

    stats_rand_gen_exponential — Generates a random deviate from the exponential distribution

    说明

    stats_rand_gen_exponential(float $av): float

    Returns a random deviate from the exponential distribution of which the scale is av.

    参数

    av

    The scale parameter

    返回值

    A random deviate

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