diff --git a/source/cosmomyst/math/matrix.d b/source/cosmomyst/math/matrix.d
index 1d095d8..331f892 100644
--- a/source/cosmomyst/math/matrix.d
+++ b/source/cosmomyst/math/matrix.d
@@ -17,8 +17,10 @@ struct mat(ulong n) if (n >= 2) {
     }
 
     @nogc this(T...)(T args) pure nothrow {
+        import std.traits : isNumeric;
+
         static foreach (arg; args) {
-            static assert(is(typeof(arg) == float) || is(typeof(arg) == const(float)), "all values must be of type float");
+            static assert(isNumeric!(typeof(arg)), "all values must be numeric");
         }
 
         static assert(args.length > 0, "no args provided");
@@ -132,11 +134,6 @@ struct mat(ulong n) if (n >= 2) {
         return res;
      }
 
-    string toString() {
-        import std.format : format;
-        return format!("%s")(c);
-    }
-
     /++
      + internal data as a pointer, use for sending data to shaders.
      +/
@@ -343,8 +340,6 @@ unittest {
 
     t1[0, 0] = 5f;
     assert(t1[0, 0] == 5f);
-
-    assert(t1.toString() == "[[5, 2], [2, 2]]");
 }
 
 unittest {
@@ -400,7 +395,6 @@ unittest {
 }
 
 unittest {
-    
     auto m1 = mat4(5f, 6f, 6f, 8f, 2f, 2f, 2f, 8f, 6f, 6f, 2f, 8f, 2f, 3f, 6f, 7f);
     assert(mat_inverse(m1) * m1 == mat_ident!4());
 }
diff --git a/source/cosmomyst/math/vector.d b/source/cosmomyst/math/vector.d
index 8c1d6aa..ad5b258 100644
--- a/source/cosmomyst/math/vector.d
+++ b/source/cosmomyst/math/vector.d
@@ -90,11 +90,6 @@ struct vec(ulong n) if (n >= 1) {
         return this / length();
     }
 
-    string toString() const {
-        import std.string : format;
-        return format("%s", v);
-    }
-
     /++
      + returns the negated vector.
      +/
@@ -221,10 +216,9 @@ struct vec(ulong n) if (n >= 1) {
  + returns the dot product of 2 vectors.
  +/
 @nogc float vec_dot(ulong n)(vec!n a, vec!n b) pure nothrow {
-    import std.format : format;
     float res = 0f;
     static foreach (i; 0..n) {
-        mixin(format!("res += a.v[%s] * b.v[%s];")(i, i));
+        res += a.v[i] * b.v[i];
     }
     return res;
 }
@@ -247,8 +241,6 @@ unittest {
     auto t2 = vec2(2f);
     assert(t2.x == 2f);
     assert(t2.y == 2f);
-
-    assert(t1.toString() == "[2, 3]");
 }
 
 unittest {