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# -*- org -*-
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#+CATEGORY: cdf
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* discrete inverse distributions - easy apart from hypergeometric(?)
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* look for integer overflow in the discrete functions - this could be
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hard to find - perform computations in double to avoid.
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gsl_cdf_binomial_P (unsigned int k, double p, unsigned int n);
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gsl_cdf_binomial_Q (unsigned int k, double p, unsigned int n);
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gsl_cdf_poisson_P (unsigned int k, double mu);
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gsl_cdf_poisson_Q (unsigned int k, double mu);
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gsl_cdf_geometric_P (unsigned int k, double p);
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gsl_cdf_geometric_Q (unsigned int k, double p);
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gsl_cdf_negative_binomial_P (unsigned int k, double p, double n);
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gsl_cdf_negative_binomial_Q (unsigned int k, double p, double n);
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gsl_cdf_pascal_P (unsigned int k, double p, unsigned int n);
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gsl_cdf_pascal_Q (unsigned int k, double p, unsigned int n);
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gsl_cdf_hypergeometric_P (unsigned int k, unsigned int n1,
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unsigned int n2, unsigned int t);
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gsl_cdf_hypergeometric_Q (unsigned int k, unsigned int n1,
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unsigned int n2, unsigned int t);
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* Unify the beta_inc function with the special functions, put all the
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functionaity in gsl_sf_beta_inc, providing a new function for the
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AXPY part if necessary (can we do everything with gsl_sf_beta_inc
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and gsl_sf_beta_inc_1mx keeping in mind that we cannot do 1-x
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because of cancellation for small x)
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