diff --git a/src/linalg/linalg.cpp b/src/linalg/linalg.cpp
index f6af326..1256005 100644
--- a/src/linalg/linalg.cpp
+++ b/src/linalg/linalg.cpp
@@ -61,9 +61,13 @@ float norm(matrix m) {
 
     } 
 
-    // todo: implement different matrix norms
-
-    return 0;
+    float sum = 0;
+    for(int i=0; i<m.get_rows(); i++) {
+        for(int j=0; j<m.get_cols(); j++) {
+            sum += m(i, j)*m(i, j);
+        }
+    }
+    return std::sqrt(sum);
 
 };
 matrix normalize(matrix m) {