+static double
+matrix_eval_CDF_F (double x, double df1, double df2)
+{
+ return gsl_cdf_fdist_P (x, df1, df2);
+}
+
+static double
+matrix_eval_IDF_F (double P, double df1, double df2)
+{
+ return idf_fdist (P, df1, df2);
+}
+
+static double
+matrix_eval_RV_F (double df1, double df2)
+{
+ return gsl_ran_fdist (get_rng (), df1, df2);
+}
+
+static double
+matrix_eval_PDF_F (double x, double df1, double df2)
+{
+ return gsl_ran_fdist_pdf (x, df1, df2);
+}
+
+static double
+matrix_eval_SIG_F (double x, double df1, double df2)
+{
+ return gsl_cdf_fdist_Q (x, df1, df2);
+}
+