1 files changed, 8 insertions, 0 deletions
diff --git a/lib/js/urweb.js b/lib/js/urweb.js
index 55925df5..96a12637 100644
--- a/lib/js/urweb.js
+++ b/lib/js/urweb.js
@@ -151,6 +151,14 @@ function atan2(n, m){
     return Math.atan2(n, m);
 }
 
+function floor(n){
+    return Math.floor(n);
+}
+
+function abs(n){
+    return Math.abs(n);
+}
+
 // Time, represented as counts of microseconds since the epoch
 
 var time_format = "%c";