diff --git a/src/path/Curve.js b/src/path/Curve.js
index cfcc9ff0..2cd8ed01 100644
--- a/src/path/Curve.js
+++ b/src/path/Curve.js
@@ -899,7 +899,7 @@ statics: {
     }
 
     /**
-     * Returns the point on the curve at the specified offset.
+     * Calculates the point on the curve at the given offset.
      *
      * @name Curve#getPointAt
      * @function
@@ -911,7 +911,7 @@ statics: {
      */
 
     /**
-     * Returns the tangent vector of the curve at the specified position.
+     * Calculates the tangent vector of the curve at the given offset.
      *
      * @name Curve#getTangentAt
      * @function
@@ -923,7 +923,7 @@ statics: {
      */
 
     /**
-     * Returns the normal vector of the curve at the specified position.
+     * Calculates the normal vector of the curve at the given offset.
      *
      * @name Curve#getNormalAt
      * @function
@@ -935,9 +935,10 @@ statics: {
      */
 
     /**
-     * Returns the curvature vector of the curve at the specified position.
-     * Curvatures indicate how sharply a curve changes direction. A straight
-     * line has zero curvature where as a circle has a constant curvature.
+     * Calculates the curvature of the curve at the given offset. Curvatures
+     * indicate how sharply a curve changes direction. A straight line has zero
+     * curvature, where as a circle has a constant curvature. The curve's radius
+     * at the given offset is the reciprocal value of its curvature.
      *
      * @name Curve#getCurvatureAt
      * @function
diff --git a/src/path/Path.js b/src/path/Path.js
index 9f701b88..3b97f343 100644
--- a/src/path/Path.js
+++ b/src/path/Path.js
@@ -1751,8 +1751,7 @@ var Path = PathItem.extend(/** @lends Path# */{
      */
 
     /**
-     * Calculates the tangent to the path at the given offset as a vector
-     * point.
+     * Calculates the tangent vector of the path at the given offset.
      *
      * @name Path#getTangentAt
      * @param {Number} offset the offset on the path, where {@code 0} is at
@@ -1822,7 +1821,7 @@ var Path = PathItem.extend(/** @lends Path# */{
      */
 
     /**
-     * Calculates the normal to the path at the given offset as a vector point.
+     * Calculates the normal vector of the path at the given offset.
      *
      * @name Path#getNormalAt
      * @param {Number} offset the offset on the path, where {@code 0} is at
@@ -1891,6 +1890,19 @@ var Path = PathItem.extend(/** @lends Path# */{
      * }
      */
 
+    /**
+     * Calculates the curvature of the path at the given offset. Curvatures
+     * indicate how sharply a path changes direction. A straight line has zero
+     * curvature, where as a circle has a constant curvature. The path's radius
+     * at the given offset is the reciprocal value of its curvature.
+     *
+     * @name Path#getCurvatureAt
+     * @param {Number} offset the offset on the path, where {@code 0} is at
+     * the beginning of the path and {@link Path#length} at the end.
+     * @param {Boolean} [isParameter=false]
+     * @return {Point} the normal vector at the given offset
+     *
+
     /**
      * Returns the nearest location on the path to the specified point.
      *