1 files changed, 4 insertions, 0 deletions
diff --git a/src/math.h b/src/math.h
index 7c01c4b..8d058cc 100644
--- a/src/math.h
+++ b/src/math.h
@@ -19,5 +19,9 @@ radians d2r(degrees d);
 degrees r2d(radians r);
 radians points_to_angle(c2_t p1,c2_t p2);
 int between_angles(degrees d,real lower,real upper);
+c3_s_t apply_group_relative(c3_s_t s,c3_group_rot_t *group_rot);
+c3_t c3_add(c3_t p1,c3_t p2);
+real distance3(c3_t p1,c3_t p2);
+void print_point(c3_t p);
 
 #endif