(PECL stats >= 1.0.0)
stats_dens_cauchy — Probability density function of the Cauchy distribution
stats_dens_cauchy ( float $x , float $ave , float $stdev ) : float
Returns the probability density at x, where the random variable follows the Cauchy distribution whose location and scale are ave and stdev, respectively.
x
The value at which the probability density is calculated
ave
The location parameter of the distribution
stdev
The scale parameter of the distribution
The probability density at x or false for failure.
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https://www.php.net/manual/en/function.stats-dens-cauchy.php