diff --git a/src/lol/math/simplex_interpolator.h b/src/lol/math/simplex_interpolator.h
index ba444b78..7dee0d98 100644
--- a/src/lol/math/simplex_interpolator.h
+++ b/src/lol/math/simplex_interpolator.h
@@ -136,7 +136,7 @@ protected:
         */
 
         float b = (1.f - lol::sqrt(N + 1.f)) / lol::sqrt((float)N * N * N);
-        float a = b + lol::sqrt(N + 1.f) / N;
+        float a = b + lol::sqrt((N + 1.f) / N);
 
         // determinant of matrix M
         float det = a * (a + (N - 2) * b) - (b * b) * (N - 1);
diff --git a/src/t/math/simplex_interpolator.cpp b/src/t/math/simplex_interpolator.cpp
index 35737ae8..3a4db250 100644
--- a/src/t/math/simplex_interpolator.cpp
+++ b/src/t/math/simplex_interpolator.cpp
@@ -39,7 +39,7 @@ public:
             {
                 std::cout << this->m_base[i][j] << ", ";
             }
-            std::cout << std::endl;
+            std::cout << ";";
         }
 
         std::cout << std::endl;
@@ -50,8 +50,10 @@ public:
             {
                 std::cout << this->m_base_inverse[i][j] << ", ";
             }
-            std::cout << std::endl;
+            std::cout << ";";
         }
+
+        std::cout << std::endl;
     }
 };