diff --git a/app/fpointers.cpp b/app/fpointers.cpp
new file mode 100644
index 0000000..dae8518
--- /dev/null
+++ b/app/fpointers.cpp
@@ -0,0 +1,20 @@
+#include "../src/platform/base.hpp"
+
+int sum(int a, int b) { return a + b; }
+
+int sub(int a, int b) { return a - b; }
+
+int main(void) {
+  std::cout << "Hello Pointers" << std::endl;
+  f_pointer(op, int, int, int);
+
+  op = sum;
+  int a = 22;
+  int b = 11;
+
+  std::cout << "Sum: " << op(a, b) << std::endl;
+
+  op = sub;
+
+  std::cout << "Sub: " << op(a, b) << std::endl;
+}
diff --git a/premake/fpointers.lua b/premake/fpointers.lua
new file mode 100644
index 0000000..bf9a242
--- /dev/null
+++ b/premake/fpointers.lua
@@ -0,0 +1,20 @@
+project "fpointers"
+kind "ConsoleApp"
+language "c++"
+targetdir "../bin/%{cfg.buildcfg}"
+objdir "../obj"
+
+--files {"**.hpp","**.cpp"}
+files {
+    "../app/fpointers.cpp"
+}
+
+filter "configurations:Debug"
+  defines { "DEBUG" }
+  symbols "On"
+
+filter "configurations:Release"
+    defines { "NDEBUG" }
+    optimize "On"
+
+filter { "system:linux" }
diff --git a/src/engine/math/quaternion.cpp b/src/engine/math/quaternion.cpp
new file mode 100644
index 0000000..4c13298
--- /dev/null
+++ b/src/engine/math/quaternion.cpp
@@ -0,0 +1,27 @@
+#include "quaternion.hpp"
+
+using namespace engine::math;
+
+quaternion::quaternion(float32 _x, float32 _y, float32 _z, float32 _w) {
+  x = _x;
+  y = _y;
+  z = _z;
+  w = _w;
+};
+
+quaternion::quaternion(const vector3d &v, float32 scalar) {
+  quaternion(v.x, v.y, v.z, scalar);
+};
+
+const vector3d &quaternion::GetVector() const {
+  return reinterpret_cast<const vector3d &>(x);
+};
+
+inline quaternion operator*(const quaternion &q1, const quaternion &q2) {
+  float32 x = q1.x * q2.w + q1.y * q2.z - q1.z * q2.y + q1.w * q2.x;
+  float32 y = q1.y * q2.w + q1.z * q2.x + q1.w * q2.y - q1.x * q2.z;
+  float32 z = q1.z * q2.w + q1.w * q2.z + q1.x * q2.y - q1.y * q2.x;
+  float32 w = q1.w * q2.w - q1.x * q2.x - q1.y * q2.y - q1.z * q2.z;
+
+  return quaternion(x, y, z, w);
+};
diff --git a/src/engine/math/quaternion.hpp b/src/engine/math/quaternion.hpp
new file mode 100644
index 0000000..6a79479
--- /dev/null
+++ b/src/engine/math/quaternion.hpp
@@ -0,0 +1,18 @@
+#pragma once
+
+#include "../../platform/base.hpp"
+#include "vector3d.hpp"
+
+namespace engine::math {
+struct quaternion {
+  float32 x, y, z, w;
+  quaternion() = default;
+  ~quaternion() = default;
+  quaternion(float32 _x, float32 _y, float32 _z, float32 _w);
+  quaternion(const vector3d &v, float32 s);
+  const vector3d &GetVector(void) const;
+};
+
+inline quaternion operator*(const quaternion &q1, const quaternion &q2);
+
+}; // namespace engine::math
diff --git a/src/engine/math/utils.hpp b/src/engine/math/utils.hpp
new file mode 100644
index 0000000..ad53db5
--- /dev/null
+++ b/src/engine/math/utils.hpp
@@ -0,0 +1,9 @@
+#pragma once
+
+// Defines a matrix in termos of float32
+#define MATRIX(n, d) float32 n[d][d]
+
+// Computes determinant sub block
+#define DET(a, b, c, d) (a * d - b * c)
+
+#define INVDET(row, idet) row[0] * idet, row[1] * idet, row[2] * idet
diff --git a/src/platform/dsl/pt.h b/src/platform/dsl/pt.h
new file mode 100644
index 0000000..01b79ca
--- /dev/null
+++ b/src/platform/dsl/pt.h
@@ -0,0 +1,18 @@
+/**
+ * Defines a set of macros to enable us to progam as if C was created by
+ * portuguese programmers
+ */
+
+#define se if
+#define senao else
+#define enquanto while
+#define para for
+#define privado private
+#define publico public
+#define protegido protected
+#define estatico static
+#define constante const
+#define classe class
+#define estrutura struct
+#define deftipo typedef
+#define vazio void