diff --git a/graphics/java/android/renderscript/Matrix2f.java b/graphics/java/android/renderscript/Matrix2f.java
index a575ca9..99d23db 100644
--- a/graphics/java/android/renderscript/Matrix2f.java
+++ b/graphics/java/android/renderscript/Matrix2f.java
@@ -96,6 +96,11 @@
         tmp.loadScale(x, y);
         multiply(tmp);
     }
+    public void transpose() {
+        float temp = mMat[1];
+        mMat[1] = mMat[2];
+        mMat[2] = temp;
+    }
 
     final float[] mMat;
 }
diff --git a/graphics/java/android/renderscript/Matrix3f.java b/graphics/java/android/renderscript/Matrix3f.java
index d01ac68..961bc5d 100644
--- a/graphics/java/android/renderscript/Matrix3f.java
+++ b/graphics/java/android/renderscript/Matrix3f.java
@@ -165,6 +165,15 @@
         tmp.loadTranslate(x, y);
         multiply(tmp);
     }
+    public void transpose() {
+        for(int i = 0; i < 2; ++i) {
+            for(int j = i + 1; j < 3; ++j) {
+                float temp = mMat[i*3 + j];
+                mMat[i*3 + j] = mMat[j*3 + i];
+                mMat[j*3 + i] = temp;
+            }
+        }
+    }
 
     final float[] mMat;
 }
diff --git a/graphics/java/android/renderscript/Matrix4f.java b/graphics/java/android/renderscript/Matrix4f.java
index ebd5bde..e854cd9 100644
--- a/graphics/java/android/renderscript/Matrix4f.java
+++ b/graphics/java/android/renderscript/Matrix4f.java
@@ -179,6 +179,15 @@
         tmp.loadTranslate(x, y, z);
         multiply(tmp);
     }
+    public void transpose() {
+        for(int i = 0; i < 3; ++i) {
+            for(int j = i + 1; j < 4; ++j) {
+                float temp = mMat[i*4 + j];
+                mMat[i*4 + j] = mMat[j*4 + i];
+                mMat[j*4 + i] = temp;
+            }
+        }
+    }
 
     final float[] mMat;
 }