1 files changed, 1 insertions, 0 deletions
diff --git a/src/lib.rs b/src/lib.rs
index df9bc1d..e9ca2f8 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -10,6 +10,7 @@ use std::cmp;
 /// This is used in Bound and Vectors
 pub trait Number:
     Copy +
+    Default +
     cmp::PartialOrd +
     Sub<Output = Self> +
     Add<Output = Self> +