Note rounding errors

linebender · Oct 3, 2024 · ac82471 · ac82471
1 parent 663ac0e
commit ac82471
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/ellipse.rs b/src/ellipse.rs
@@ -232,7 +232,7 @@ impl Shape for Ellipse {
     /// Approximate the ellipse perimeter.
     ///
     /// This uses a numerical approximation. The absolute error between the calculated perimeter
-    /// and the true perimeter is bounded by `accuracy`.
+    /// and the true perimeter is bounded by `accuracy` (modulo floating point rounding errors).
     ///
     /// For circular ellipses (equal horizontal and vertical radii), the calculated perimeter is
     /// exact.