Delete dxdy variable

1 files changed, 0 insertions, 1 deletions

diff --git a/dda.c b/dda.c
index f045cd4..5c8a3a1 100644
--- a/dda.c
+++ b/dda.c
@@ -70,7 +70,6 @@ dda (test_data_t *testdata)
 
     double dx = (x1 - x0);
     double dy = (y1 - y0);
-    double dxdy = dx / dy;
     double yi = next_sample_y (y0);
     double xi = next_sample_x (x0);
     double e = (xi - x0) * dy - (yi - y0) * dx;