diff --git a/examples/derivatives/main.cpp b/examples/derivatives/main.cpp
index 7469610..15b5160 100644
--- a/examples/derivatives/main.cpp
+++ b/examples/derivatives/main.cpp
@@ -1,7 +1,7 @@
 // Copyright (c) 2024 Alvin Zhang.
 
-#include <suboptimal/autodiff/Variable.h>
 #include <suboptimal/autodiff/Derivatives.h>
+#include <suboptimal/autodiff/Variable.h>
 
 #include <array>
 #include <cmath>
diff --git a/examples/elevatorMPC/main.cpp b/examples/elevatorMPC/main.cpp
index 8522d42..222ccce 100644
--- a/examples/elevatorMPC/main.cpp
+++ b/examples/elevatorMPC/main.cpp
@@ -7,8 +7,8 @@
 
 #include <Eigen/Core>
 
-#include "ElevatorMPC.h"
 #include "Dynamics.h"
+#include "ElevatorMPC.h"
 
 int main() {
   using namespace std::chrono_literals;
diff --git a/include/suboptimal/NonlinearProblem.h b/include/suboptimal/NonlinearProblem.h
index 7500a2f..7c0e0be 100644
--- a/include/suboptimal/NonlinearProblem.h
+++ b/include/suboptimal/NonlinearProblem.h
@@ -1,8 +1,10 @@
+// Copyright (c) 2024 Alvin Zhang.
+
 #pragma once
 
 #include <concepts>
-#include <vector>
 #include <utility>
+#include <vector>
 
 #include "suboptimal/autodiff/Variable.h"
 
@@ -79,7 +81,7 @@ class NonlinearProblem {
    * @param objective the function to maximize
    */
   void maximize(Variable&& objective);
-  
+
   /**
    * Adds a constraint to the optimization problem
    * @param constraint the constraint to add
diff --git a/src/NonlinearProblem.cpp b/src/NonlinearProblem.cpp
index eb207c7..ae7b6eb 100644
--- a/src/NonlinearProblem.cpp
+++ b/src/NonlinearProblem.cpp
@@ -1,5 +1,9 @@
+// Copyright (c) 2024 Alvin Zhang.
+
 #include "suboptimal/NonlinearProblem.h"
 
+#include <utility>
+
 namespace suboptimal {
 NonlinearProblem::NonlinearProblem() = default;
 
diff --git a/src/autodiff/Variable.cpp b/src/autodiff/Variable.cpp
index c54a6ea..8ce677f 100644
--- a/src/autodiff/Variable.cpp
+++ b/src/autodiff/Variable.cpp
@@ -106,7 +106,6 @@ Variable asinh(const Variable& x) {
 
 Variable acosh(const Variable& x) {
   return acosh(x.expr);
-  
 }
 
 Variable atanh(const Variable& x) {
diff --git a/src/solvers/linear/Simplex.cpp b/src/solvers/linear/Simplex.cpp
index 54cf86f..3d4d880 100644
--- a/src/solvers/linear/Simplex.cpp
+++ b/src/solvers/linear/Simplex.cpp
@@ -14,10 +14,10 @@
 #include "suboptimal/solvers/SolverExitStatus.h"
 #include "suboptimal/solvers/linear/SimplexPivotRule.h"
 #include "suboptimal/solvers/linear/SimplexSolverConfig.h"
-#include "util/FinalAction.h"
-#include "util/SolverProfiler.h"
 #include "util/Assert.h"
 #include "util/ComparisonUtil.h"
+#include "util/FinalAction.h"
+#include "util/SolverProfiler.h"
 
 using namespace Eigen;
 
diff --git a/test/autodiff/GradientTest.cpp b/test/autodiff/GradientTest.cpp
index 93c0ad2..1f61a4b 100644
--- a/test/autodiff/GradientTest.cpp
+++ b/test/autodiff/GradientTest.cpp
@@ -2,8 +2,8 @@
 
 #define CATCH_CONFIG_FAST_COMPILE
 
-#include <suboptimal/autodiff/Variable.h>
 #include <suboptimal/autodiff/Derivatives.h>
+#include <suboptimal/autodiff/Variable.h>
 
 #include <cmath>
 #include <iostream>
@@ -31,6 +31,10 @@ TEST_CASE("Autodiff - Basic gradient", "[autodiff]") {
 
   const Eigen::Vector2d grad_val{(x_val * x_val - y_val * y_val) / (5 * x_val * x_val),  //
                                  (2 * y_val - 2 * x_val) / (5 * x_val)};
+
+
+  std::cout << grad.getValue() << std::endl;
+  std::cout << grad_val << std::endl;
   CHECK(grad.getValue().isApprox(grad_val));
   CHECK(suboptimal::getValues(grad.getExpr()).isApprox(grad_val));
 }
diff --git a/test/autodiff/HessianTest.cpp b/test/autodiff/HessianTest.cpp
index 0ee62c8..c6bb14f 100644
--- a/test/autodiff/HessianTest.cpp
+++ b/test/autodiff/HessianTest.cpp
@@ -2,8 +2,8 @@
 
 #define CATCH_CONFIG_FAST_COMPILE
 
-#include <suboptimal/autodiff/Variable.h>
 #include <suboptimal/autodiff/Derivatives.h>
+#include <suboptimal/autodiff/Variable.h>
 
 #include <cmath>
 
diff --git a/test/autodiff/JacobianTest.cpp b/test/autodiff/JacobianTest.cpp
index 890c4e7..6904100 100644
--- a/test/autodiff/JacobianTest.cpp
+++ b/test/autodiff/JacobianTest.cpp
@@ -2,8 +2,8 @@
 
 #define CATCH_CONFIG_FAST_COMPILE
 
-#include <suboptimal/autodiff/Variable.h>
 #include <suboptimal/autodiff/Derivatives.h>
+#include <suboptimal/autodiff/Variable.h>
 
 #include <cmath>
 #include <iostream>
diff --git a/test/solvers/linear/SimplexFailureTest.cpp b/test/solvers/linear/SimplexFailureTest.cpp
index 312e828..20e7643 100644
--- a/test/solvers/linear/SimplexFailureTest.cpp
+++ b/test/solvers/linear/SimplexFailureTest.cpp
@@ -4,9 +4,9 @@
 
 #include <suboptimal/LinearProblem.h>
 #include <suboptimal/solvers/SolverExitStatus.h>
+#include <suboptimal/solvers/linear/Simplex.h>
 #include <suboptimal/solvers/linear/SimplexPivotRule.h>
 #include <suboptimal/solvers/linear/SimplexSolverConfig.h>
-#include <suboptimal/solvers/linear/Simplex.h>
 
 #include <limits>
 
diff --git a/test/solvers/linear/SimplexTest.cpp b/test/solvers/linear/SimplexTest.cpp
index 2a78367..d33a7e3 100644
--- a/test/solvers/linear/SimplexTest.cpp
+++ b/test/solvers/linear/SimplexTest.cpp
@@ -4,9 +4,9 @@
 
 #include <suboptimal/LinearProblem.h>
 #include <suboptimal/solvers/SolverExitStatus.h>
+#include <suboptimal/solvers/linear/Simplex.h>
 #include <suboptimal/solvers/linear/SimplexPivotRule.h>
 #include <suboptimal/solvers/linear/SimplexSolverConfig.h>
-#include <suboptimal/solvers/linear/Simplex.h>
 
 #include <Eigen/Core>
 #include <catch2/catch_test_macros.hpp>