diff --git a/.cproject b/.cproject
index 97e36d81f..31d4d9143 100644
--- a/.cproject
+++ b/.cproject
@@ -1,17 +1,19 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<?fileVersion 4.0.0?><cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
+<?fileVersion 4.0.0?>
+
+<cproject storage_type_id="org.eclipse.cdt.core.XmlProjectDescriptionStorage">
 	<storageModule moduleId="org.eclipse.cdt.core.settings">
 		<cconfiguration id="cdt.managedbuild.toolchain.gnu.macosx.base.1359703544">
 			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="cdt.managedbuild.toolchain.gnu.macosx.base.1359703544" moduleId="org.eclipse.cdt.core.settings" name="MacOSX GCC">
 				<externalSettings/>
 				<extensions>
+					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
+					<extension id="org.eclipse.cdt.core.MachO64" point="org.eclipse.cdt.core.BinaryParser"/>
 					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.MachO64" point="org.eclipse.cdt.core.BinaryParser"/>
 				</extensions>
 			</storageModule>
 			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
@@ -60,13 +62,13 @@
 			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="cdt.managedbuild.toolchain.gnu.macosx.base.1359703544.1441575890" moduleId="org.eclipse.cdt.core.settings" name="Timing">
 				<externalSettings/>
 				<extensions>
+					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
+					<extension id="org.eclipse.cdt.core.MachO64" point="org.eclipse.cdt.core.BinaryParser"/>
 					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.MachO64" point="org.eclipse.cdt.core.BinaryParser"/>
 				</extensions>
 			</storageModule>
 			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
@@ -116,13 +118,13 @@
 			<storageModule buildSystemId="org.eclipse.cdt.managedbuilder.core.configurationDataProvider" id="cdt.managedbuild.toolchain.gnu.macosx.base.1359703544.127261216" moduleId="org.eclipse.cdt.core.settings" name="fast">
 				<externalSettings/>
 				<extensions>
+					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
+					<extension id="org.eclipse.cdt.core.MachO64" point="org.eclipse.cdt.core.BinaryParser"/>
 					<extension id="org.eclipse.cdt.core.GASErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.GLDErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.GCCErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.GmakeErrorParser" point="org.eclipse.cdt.core.ErrorParser"/>
 					<extension id="org.eclipse.cdt.core.CWDLocator" point="org.eclipse.cdt.core.ErrorParser"/>
-					<extension id="org.eclipse.cdt.core.ELF" point="org.eclipse.cdt.core.BinaryParser"/>
-					<extension id="org.eclipse.cdt.core.MachO64" point="org.eclipse.cdt.core.BinaryParser"/>
 				</extensions>
 			</storageModule>
 			<storageModule moduleId="cdtBuildSystem" version="4.0.0">
@@ -540,14 +542,6 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testGaussianFactor.run" path="linear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testGaussianFactor.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="all" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -574,6 +568,7 @@
 			</target>
 			<target name="tests/testBayesTree.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>tests/testBayesTree.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -581,6 +576,7 @@
 			</target>
 			<target name="testBinaryBayesNet.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testBinaryBayesNet.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -628,6 +624,7 @@
 			</target>
 			<target name="testSymbolicBayesNet.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSymbolicBayesNet.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -635,6 +632,7 @@
 			</target>
 			<target name="tests/testSymbolicFactor.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>tests/testSymbolicFactor.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -642,6 +640,7 @@
 			</target>
 			<target name="testSymbolicFactorGraph.run" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSymbolicFactorGraph.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -657,11 +656,20 @@
 			</target>
 			<target name="tests/testBayesTree" path="inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>tests/testBayesTree</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="testGaussianFactor.run" path="linear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testGaussianFactor.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="testPoseRTV.run" path="build/gtsam_unstable/dynamics" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j5</buildArguments>
@@ -758,22 +766,6 @@
 				<useDefaultCommand>false</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="all" path="CppUnitLite" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>all</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="clean" path="CppUnitLite" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>clean</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="tests/testPose2.run" path="build_retract/gtsam/geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -790,6 +782,22 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="all" path="CppUnitLite" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>all</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="clean" path="CppUnitLite" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>clean</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="all" path="spqr_mini" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -814,42 +822,26 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testValues.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="all" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testValues.run</buildTarget>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>all</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testOrdering.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="check" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testOrdering.run</buildTarget>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>check</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testKey.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="clean" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testKey.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testLinearContainerFactor.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testLinearContainerFactor.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testWhiteNoiseFactor.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j6 -j8</buildArguments>
-				<buildTarget>testWhiteNoiseFactor.run</buildTarget>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>clean</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
@@ -918,26 +910,42 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="all" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="testValues.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>all</buildTarget>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testValues.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="check" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="testOrdering.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>check</buildTarget>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testOrdering.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="clean" path="build_wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="testKey.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>clean</buildTarget>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testKey.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testLinearContainerFactor.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testLinearContainerFactor.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testWhiteNoiseFactor.run" path="build/gtsam/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j6 -j8</buildArguments>
+				<buildTarget>testWhiteNoiseFactor.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
@@ -1086,6 +1094,14 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="testTSAMFactors.run" path="build/gtsam_unstable/slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testTSAMFactors.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="testDiscreteFactor.run" path="build/gtsam/discrete" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j5</buildArguments>
@@ -1328,6 +1344,7 @@
 			</target>
 			<target name="testGraph.run" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testGraph.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1335,6 +1352,7 @@
 			</target>
 			<target name="testJunctionTree.run" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testJunctionTree.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1342,6 +1360,7 @@
 			</target>
 			<target name="testSymbolicBayesNetB.run" path="build/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testSymbolicBayesNetB.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1509,6 +1528,7 @@
 			</target>
 			<target name="testErrors.run" path="linear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
+				<buildArguments/>
 				<buildTarget>testErrors.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -1554,22 +1574,6 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testParticleFactor.run" path="build/gtsam_unstable/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testParticleFactor.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testGaussianFactor.run" path="build/linear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testGaussianFactor.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="check" path="base" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -1650,6 +1654,22 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="testGaussianFactor.run" path="build/linear/tests" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testGaussianFactor.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testParticleFactor.run" path="build/gtsam_unstable/nonlinear" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testParticleFactor.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="check" path="build/inference" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -1930,22 +1950,6 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testImuFactor.run" path="build/gtsam/navigation" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testImuFactor.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testCombinedImuFactor.run" path="build/gtsam/navigation" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testCombinedImuFactor.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="all" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j2</buildArguments>
@@ -2028,7 +2032,6 @@
 			</target>
 			<target name="testSimulated2DOriented.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testSimulated2DOriented.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2068,7 +2071,6 @@
 			</target>
 			<target name="testSimulated2D.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testSimulated2D.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2076,7 +2078,6 @@
 			</target>
 			<target name="testSimulated3D.run" path="slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>testSimulated3D.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2090,6 +2091,22 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="testImuFactor.run" path="build/gtsam/navigation" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testImuFactor.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testCombinedImuFactor.run" path="build/gtsam/navigation" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testCombinedImuFactor.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 			<target name="testVector.run" path="build/gtsam/base" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j5</buildArguments>
@@ -2364,7 +2381,6 @@
 			</target>
 			<target name="tests/testGaussianISAM2" path="build/slam" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments/>
 				<buildTarget>tests/testGaussianISAM2</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2386,102 +2402,6 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testRot3.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testRot3.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testRot2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testRot2.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testPose3.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testPose3.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="timeRot3.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>timeRot3.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testPose2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testPose2.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testCal3_S2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testCal3_S2.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testSimpleCamera.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testSimpleCamera.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testHomography2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testHomography2.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testCalibratedCamera.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testCalibratedCamera.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="check" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>check</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="clean" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>clean</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
-			<target name="testPoint2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
-				<buildCommand>make</buildCommand>
-				<buildArguments>-j2</buildArguments>
-				<buildTarget>testPoint2.run</buildTarget>
-				<stopOnError>true</stopOnError>
-				<useDefaultCommand>true</useDefaultCommand>
-				<runAllBuilders>true</runAllBuilders>
-			</target>
 			<target name="install" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
 				<buildArguments>-j3</buildArguments>
@@ -2683,6 +2603,7 @@
 			</target>
 			<target name="Generate DEB Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>cpack</buildCommand>
+				<buildArguments/>
 				<buildTarget>-G DEB</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2690,6 +2611,7 @@
 			</target>
 			<target name="Generate RPM Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>cpack</buildCommand>
+				<buildArguments/>
 				<buildTarget>-G RPM</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2697,6 +2619,7 @@
 			</target>
 			<target name="Generate TGZ Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>cpack</buildCommand>
+				<buildArguments/>
 				<buildTarget>-G TGZ</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2704,6 +2627,7 @@
 			</target>
 			<target name="Generate TGZ Source Package" path="" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>cpack</buildCommand>
+				<buildArguments/>
 				<buildTarget>--config CPackSourceConfig.cmake</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>false</useDefaultCommand>
@@ -2877,34 +2801,98 @@
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testSpirit.run" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="testRot3.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testSpirit.run</buildTarget>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testRot3.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="testWrap.run" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="testRot2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>testWrap.run</buildTarget>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testRot2.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="check.wrap" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="testPose3.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>check.wrap</buildTarget>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testPose3.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
-			<target name="wrap" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+			<target name="timeRot3.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
 				<buildCommand>make</buildCommand>
-				<buildArguments>-j5</buildArguments>
-				<buildTarget>wrap</buildTarget>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>timeRot3.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testPose2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testPose2.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testCal3_S2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testCal3_S2.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testSimpleCamera.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testSimpleCamera.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testHomography2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testHomography2.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testCalibratedCamera.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testCalibratedCamera.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="check" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>check</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="clean" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>clean</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testPoint2.run" path="geometry" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j2</buildArguments>
+				<buildTarget>testPoint2.run</buildTarget>
 				<stopOnError>true</stopOnError>
 				<useDefaultCommand>true</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
@@ -2948,6 +2936,38 @@
 				<useDefaultCommand>false</useDefaultCommand>
 				<runAllBuilders>true</runAllBuilders>
 			</target>
+			<target name="testSpirit.run" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testSpirit.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="testWrap.run" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>testWrap.run</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="check.wrap" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>check.wrap</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
+			<target name="wrap" path="build/wrap" targetID="org.eclipse.cdt.build.MakeTargetBuilder">
+				<buildCommand>make</buildCommand>
+				<buildArguments>-j5</buildArguments>
+				<buildTarget>wrap</buildTarget>
+				<stopOnError>true</stopOnError>
+				<useDefaultCommand>true</useDefaultCommand>
+				<runAllBuilders>true</runAllBuilders>
+			</target>
 		</buildTargets>
 	</storageModule>
 </cproject>
diff --git a/gtsam_unstable/gtsam_unstable.h b/gtsam_unstable/gtsam_unstable.h
index 80ee41b22..1aa840825 100644
--- a/gtsam_unstable/gtsam_unstable.h
+++ b/gtsam_unstable/gtsam_unstable.h
@@ -15,8 +15,11 @@ virtual class gtsam::Pose3;
 virtual class gtsam::noiseModel::Base;
 virtual class gtsam::noiseModel::Gaussian;
 virtual class gtsam::imuBias::ConstantBias;
-virtual class gtsam::NoiseModelFactor;
 virtual class gtsam::NonlinearFactor;
+virtual class gtsam::NoiseModelFactor;
+virtual class gtsam::NoiseModelFactor2;
+virtual class gtsam::NoiseModelFactor3;
+virtual class gtsam::NoiseModelFactor4;
 virtual class gtsam::GaussianFactor;
 virtual class gtsam::HessianFactor;
 virtual class gtsam::JacobianFactor;
@@ -709,4 +712,32 @@ class AHRS {
   void print(string s) const;
 };
 
+// Tectonic SAM Factors
+
+#include <gtsam_unstable/slam/TSAMFactors.h>
+#include <gtsam/nonlinear/NonlinearFactor.h>
+
+//typedef gtsam::NoiseModelFactor2<gtsam::Pose2, gtsam::Point2> NLPosePose;
+virtual class DeltaFactor : gtsam::NoiseModelFactor {
+  DeltaFactor(size_t i, size_t j, const gtsam::Point2& measured,
+      const gtsam::noiseModel::Base* noiseModel);
+  void print(string s) const;
+};
+
+//typedef gtsam::NoiseModelFactor4<gtsam::Pose2, gtsam::Pose2, gtsam::Pose2,
+//    gtsam::Point2> NLPosePosePosePoint;
+virtual class DeltaFactorBase : gtsam::NoiseModelFactor {
+  DeltaFactorBase(size_t b1, size_t i, size_t b2, size_t j,
+      const gtsam::Point2& measured, const gtsam::noiseModel::Base* noiseModel);
+  void print(string s) const;
+};
+
+//typedef gtsam::NoiseModelFactor4<gtsam::Pose2, gtsam::Pose2, gtsam::Pose2,
+//    gtsam::Pose2> NLPosePosePosePose;
+virtual class OdometryFactorBase : gtsam::NoiseModelFactor {
+  OdometryFactorBase(size_t b1, size_t i, size_t b2, size_t j,
+      const gtsam::Pose2& measured, const gtsam::noiseModel::Base* noiseModel);
+  void print(string s) const;
+};
+
 } //\namespace gtsam
diff --git a/matlab/unstable_examples/TSAMFactorsExample.m b/matlab/unstable_examples/TSAMFactorsExample.m
new file mode 100644
index 000000000..5ee9f3909
--- /dev/null
+++ b/matlab/unstable_examples/TSAMFactorsExample.m
@@ -0,0 +1,44 @@
+% TSAMFactorsExample
+% Frank Dellaert, May 2014
+
+import gtsam.*;
+
+% noise models
+noisePrior = noiseModel.Diagonal.Sigmas([0; 0; 0]);
+noiseDelta = noiseModel.Isotropic.Sigma(2, 0.1);
+noiseOdom = noiseModel.Diagonal.Sigmas([0.1; 0.1; 0.05]);
+
+% Example is 1, landmark, 2 poses 10 and 20, 2 base nodes 100 and 200
+%       +       +
+% - b - p - l - p - b
+%   +---+-------+---+
+% Create a graph
+graph = NonlinearFactorGraph
+origin = Pose2;
+graph.add(gtsam.PriorFactorPose2(100, origin, noisePrior))
+graph.add(gtsam.PriorFactorPose2(10, origin, noisePrior))
+graph.add(gtsam.PriorFactorPose2(20, origin, noisePrior))
+graph.add(DeltaFactor(10, 1, Point2(1,0), noiseDelta))
+graph.add(DeltaFactor(20, 1, Point2(-1,0), noiseDelta))
+graph.add(OdometryFactorBase(100,10,200,20, Pose2(2,0,0), noiseOdom))
+graph
+
+% Initial values
+initial = Values;
+initial.insert(100,origin);
+initial.insert(10,origin);
+initial.insert(1,Point2(2,0));
+initial.insert(20,origin);
+initial.insert(200,origin);
+
+graph.error(initial)
+graph.at(0).error(initial)
+graph.at(1).error(initial)
+graph.at(2).error(initial)
+graph.at(3).error(initial)
+
+% optimize
+params = LevenbergMarquardtParams;
+params.setVerbosity('ERROR');
+optimizer = LevenbergMarquardtOptimizer(graph, initial, params);
+result = optimizer.optimize()
\ No newline at end of file