fcc9fc4cb7c2

--- a/DOCUMENTATION.markdown	Tue Aug 23 00:45:49 2016 +0000
+++ b/DOCUMENTATION.markdown	Tue Aug 23 00:48:04 2016 +0000
@@ -494,6 +494,18 @@
 
   
 
+### `PRECISE-LERP` (function)
+
+    (PRECISE-LERP FROM TO N)
+
+Lerp together `from` and `to` by factor `n`, precisely.
+
+  Vanilla lerp does not guarantee `(lerp from to 0.0)` will return exactly
+  `from` due to floating-point errors.  This version will return exactly `from`
+  when given a `n` of `0.0`, at the cost of an extra multiplication.
+
+  
+
 ### `SQUARE` (function)
 
     (SQUARE X)

--- a/package.lisp	Tue Aug 23 00:45:49 2016 +0000
+++ b/package.lisp	Tue Aug 23 00:48:04 2016 +0000
@@ -41,7 +41,7 @@
     #:dividesp
     #:norm
     #:lerp
-    #:precide-lerp
+    #:precise-lerp
     #:map-range
     #:clamp))