1 files changed, 16 insertions, 0 deletions
diff --git a/util.c b/util.c
new file mode 100644
index 0000000..7edcd40
--- /dev/null
+++ b/util.c
@@ -0,0 +1,16 @@
+#include <u.h>
+#include <libc.h>
+#include "dat.h"
+#include "fns.h"
+
+double
+round(double n)
+{
+	return floor(n + 0.5);
+}
+
+double
+hypot3(double x, double y, double z)
+{
+	return hypot(x, hypot(y, z));
+}