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-rw-r--r--lib/dihedral.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/lib/dihedral.h b/lib/dihedral.h
index e5e4cbd..c95b23a 100644
--- a/lib/dihedral.h
+++ b/lib/dihedral.h
@@ -11,9 +11,11 @@ typedef struct {
dihedral_t *dihedral_compose(q_t q, q_t gti, const dihedral_t *g2);
-q_t dihedral_act(q_t q, q_t gi, q_t s);
+q_t dihedral_act(q_t q, q_t gi, bool r, q_t s);
q_t dihedral_inverse_act(q_t q, const dihedral_t *g, q_t s);
q_t *dihedral_gen_transformations(q_t q);
+R_t *dihedral_gen_involutions(q_t q);
+R_t factorial(q_t);