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19.8 The Cauchy Distribution
- Function: double gsl_ran_cauchy (const gsl_rng * r, double a)
This function returns a random variate from the Cauchy distribution with scale parameter a. The probability distribution for Cauchy random variates is, for x in the range -\infty to +\infty. The Cauchy distribution is also known as the Lorentz distribution.
- Function: double gsl_ran_cauchy_pdf (double x, double a)
This function computes the probability density p(x) at x for a Cauchy distribution with scale parameter a, using the formula given above.
- Function: double gsl_cdf_cauchy_P (double x, double a)
- Function: double gsl_cdf_cauchy_Q (double x, double a)
- Function: double gsl_cdf_cauchy_Pinv (double P, double a)
- Function: double gsl_cdf_cauchy_Qinv (double Q, double a)
These functions compute the cumulative distribution functions P(x), Q(x) and their inverses for the Cauchy distribution with scale parameter a.