From 7200c43dea3dbfbd9d38b937c44b6e71744b05c5 Mon Sep 17 00:00:00 2001
From: Hank Grabowski <hank@applieddefense.com>
Date: Mon, 20 Oct 2014 21:40:02 -0400
Subject: [PATCH] MATH-1138 #comment added deprecation and accuracy warnings

---
 .../interpolation/BicubicSplineInterpolatingFunction.java   | 6 +++++-
 .../analysis/interpolation/BicubicSplineInterpolator.java   | 2 ++
 2 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/apache/commons/math3/analysis/interpolation/BicubicSplineInterpolatingFunction.java b/src/main/java/org/apache/commons/math3/analysis/interpolation/BicubicSplineInterpolatingFunction.java
index 079e9fc7e..522c2a50b 100644
--- a/src/main/java/org/apache/commons/math3/analysis/interpolation/BicubicSplineInterpolatingFunction.java
+++ b/src/main/java/org/apache/commons/math3/analysis/interpolation/BicubicSplineInterpolatingFunction.java
@@ -27,10 +27,14 @@ import org.apache.commons.math3.util.MathArrays;
 /**
  * Function that implements the
  * <a href="http://en.wikipedia.org/wiki/Bicubic_interpolation">
- * bicubic spline interpolation</a>.
+ * bicubic spline interpolation</a>. Due to numerical accuracy issues this should not
+ * be used.
  *
  * @since 2.1
+ * @deprecated as of 3.4 replaced by
+ * {@link org.apache.commons.math3.analysis.interpolation.PiecewiseBicubicSplineInterpolatingFunction}
  */
+@Deprecated
 public class BicubicSplineInterpolatingFunction
     implements BivariateFunction {
     /** Number of coefficients. */
diff --git a/src/main/java/org/apache/commons/math3/analysis/interpolation/BicubicSplineInterpolator.java b/src/main/java/org/apache/commons/math3/analysis/interpolation/BicubicSplineInterpolator.java
index 5e2c92fde..bf48d0f5f 100644
--- a/src/main/java/org/apache/commons/math3/analysis/interpolation/BicubicSplineInterpolator.java
+++ b/src/main/java/org/apache/commons/math3/analysis/interpolation/BicubicSplineInterpolator.java
@@ -28,7 +28,9 @@ import org.apache.commons.math3.util.MathArrays;
  * Generates a bicubic interpolating function.
  *
  * @since 2.2
+ * @deprecated as of 3.4 replaced by {@link org.apache.commons.math3.analysis.interpolation.PiecewiseBicubicSplineInterpolator}
  */
+@Deprecated
 public class BicubicSplineInterpolator
     implements BivariateGridInterpolator {
     /** Whether to initialize internal data used to compute the analytical