diff --git a/include/blt/math/matrix.h b/include/blt/math/matrix.h
index 874e4c0..c47b8eb 100644
--- a/include/blt/math/matrix.h
+++ b/include/blt/math/matrix.h
@@ -228,6 +228,16 @@ namespace blt {
         return ret;
     }
     
+    template<typename T, unsigned long size>
+    inline vec4 operator*(const mat4x4& left, const vec<T, size>& right){
+        vec4 ret{0,0,0,0};
+        
+        for (int i = 0; i < size; i++)
+            ret[i] = (float)right[i];
+        
+        return left * ret;
+    }
+    
     // multiplies the const c with each element in the mat4x4 v
     inline mat4x4 operator*(float c, const mat4x4& v) {
         mat4x4 mat{};
diff --git a/src/tests/main.cpp b/src/tests/main.cpp
index 7936dc7..603add2 100644
--- a/src/tests/main.cpp
+++ b/src/tests/main.cpp
@@ -5,20 +5,11 @@
 #include "profiling_tests.h"
 #include "nbt_tests.h"
 #include "queue_tests.h"
+#include "blt/math/vectors.h"
+#include "blt/math/matrix.h"
 #include <bitset>
 
 int main() {
-    
-    int data = 0;
-    int index = 2;
-    data = data | index << (32 - 2);
-    auto fdata = *reinterpret_cast<float*>(&data);
-    
-    auto back_to_int = *reinterpret_cast<int*>(&fdata);
-    
-    std::string bits = std::bitset<32>((unsigned long long) back_to_int).to_string();
-    std::cout << bits << "\n";
-    return 0;
     binaryTreeTest();
     
     run_logging();
@@ -36,5 +27,19 @@ int main() {
     
     test_queues();
     
+    blt::vec4 v{2, 5, 1, 8};
+    blt::mat4x4 m{};
+    m.m(0,0, 1);
+    m.m(0,2, 2);
+    m.m(1, 1, 3);
+    m.m(1, 3, 4);
+    m.m(2, 2, 5);
+    m.m(3, 0, 6);
+    m.m(3, 3, 7);
+    
+    auto result = m * v;
+    
+    std::cout << result.x() << " " << result.y() << " " << result.z() << " " << result.w() << std::endl;
+    
     return 0;
 }
\ No newline at end of file