1 files changed, 3 insertions, 0 deletions
diff --git a/maths.h b/maths.h
index e72f8fd..725e401 100644
--- a/maths.h
+++ b/maths.h
@@ -44,6 +44,9 @@ int* vec_ref(int* d, const int* i, const int* n, int c);
 int vec_dot(const int* a, const int* b, int d);
 int* vec_nrm(int* d, const int* a, int c);
 int* vec_minise(int* d, const int* a, int c);
+int* vec_sub(int* d, const int* a, const int* b, int c);
+int* vec_add(int* d, const int* a, const int* b, int c);
+int vec_dist(int* w, const int* a, const int* b, int c);
 int* persp(int* v, int asp);
 int* ndc2clip(const int* c, int* p);