diff --git a/math-notes.txt b/math-notes.txt
index 3f25a25..be67b2e 100644
--- a/math-notes.txt
+++ b/math-notes.txt
@@ -66,11 +66,11 @@ Other instructions will not handle "negative" integers correctly:
   way to handle this is to make both values non-negative, do unsigned
   division (i.e. DIV) and then set the correct sign at the end.
 
-    @abs ( x^ -- abs-x^ sign^ )
+    @abs-sign ( x^ -- abs-x^ sign^ )
       DUP #7f GTH #fe MUL INC STHk MUL STHr JMP2r
   
     @signed-div ( x^ y^ -- x/y^ )
-      abs STH SWP abs STH SWP DIV MULr STHr MUL JMP2r
+      abs-sign STH SWP abs-sign STH SWP DIV MULr STHr MUL JMP2r
 
   Be careful! The smallest negative value (-128 for bytes, -32768 for shorts)
   has no corresponding positive value. This means that some operations will