1 files changed, 1 insertions, 0 deletions
diff --git a/arith.h b/arith.h
index 235d4ba1..7b9ecc6b 100644
--- a/arith.h
+++ b/arith.h
@@ -37,6 +37,7 @@ val in_int_ptr_range(val bignum);
 ucnum c_unum(val num);
 val unum(ucnum u);
 val cum_norm_dist(val x);
+val inv_cum_norm(val p);
 val n_choose_k(val n, val k);
 val n_perm_k(val n, val k);
 val divides(val d, val n);