1 files changed, 3 insertions, 2 deletions
diff --git a/p-spin.hpp b/p-spin.hpp
index c293d65..484bc17 100644
--- a/p-spin.hpp
+++ b/p-spin.hpp
@@ -1,6 +1,7 @@
 #pragma once
+
 #include "types.hpp"
 
 Real f(Real λ, unsigned p, unsigned s, Real q);
-Real df(Real λ, unsigned p, unsigned s, Real q);
-Real ddf(Real λ, unsigned p, unsigned s, Real q);
+Real ∂f(Real λ, unsigned p, unsigned s, Real q);
+Real ∂∂f(Real λ, unsigned p, unsigned s, Real q);