From ebae96965e9b97866d5b39440db1aace2439c3f8 Mon Sep 17 00:00:00 2001
From: Gilles Sadowski <erans@apache.org>
Date: Thu, 29 Nov 2012 13:27:10 +0000
Subject: [PATCH] Javadoc.

git-svn-id: https://svn.apache.org/repos/asf/commons/proper/math/trunk@1415158 13f79535-47bb-0310-9956-ffa450edef68
---
 .../math3/analysis/differentiation/DerivativeStructure.java | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/src/main/java/org/apache/commons/math3/analysis/differentiation/DerivativeStructure.java b/src/main/java/org/apache/commons/math3/analysis/differentiation/DerivativeStructure.java
index 3a3dcf82f..2c9d1fa3f 100644
--- a/src/main/java/org/apache/commons/math3/analysis/differentiation/DerivativeStructure.java
+++ b/src/main/java/org/apache/commons/math3/analysis/differentiation/DerivativeStructure.java
@@ -100,9 +100,9 @@ public class DerivativeStructure implements FieldElement<DerivativeStructure>, S
      * themselves is +1.</p>
      * @param parameters number of free parameters
      * @param order derivation order
-     * @param index index of the variable (from 0 to {@code variables - 1})
+     * @param index index of the variable (from 0 to {@code parameters - 1})
      * @param value value of the variable
-     * @exception NumberIsTooLargeException if index is equal to variables or larger
+     * @exception NumberIsTooLargeException if {@code index >= parameters}.
      * @see #DerivativeStructure(int, int, double)
      */
     public DerivativeStructure(final int parameters, final int order,
@@ -115,7 +115,7 @@ public class DerivativeStructure implements FieldElement<DerivativeStructure>, S
         }
 
         if (order > 0) {
-            // the derivative of the variable with respect to itself is 1.0
+            // the derivative of the variable with respect to itself is 1.
             data[DSCompiler.getCompiler(index, order).getSize()] = 1.0;
         }