diff --git a/src/lib.rs b/src/lib.rs
index f72d9f2..926e1f9 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -36,7 +36,10 @@ impl Default for Rating {
 }
 
 fn quality(rating_groups: &[&[Rating]]) -> f32 {
-    let flatten_ratings = rating_groups.iter().flat_map(|group| group.iter()).collect::<Vec<_>>();
+    let flatten_ratings = rating_groups
+        .iter()
+        .flat_map(|group| group.iter())
+        .collect::<Vec<_>>();
     let flatten_weights = vec![1.0; flatten_ratings.len()].into_boxed_slice();
 
     let length = flatten_ratings.len();
@@ -88,7 +91,6 @@ fn quality(rating_groups: &[&[Rating]]) -> f32 {
     e_arg.exp() * s_arg.sqrt()
 }
 
-
 #[cfg(test)]
 mod tests {
     use super::*;
diff --git a/src/matrix.rs b/src/matrix.rs
index c178f0e..5b1df8c 100644
--- a/src/matrix.rs
+++ b/src/matrix.rs
@@ -14,7 +14,8 @@ fn det(m: &[f32], x: usize) -> f32 {
                 .enumerate()
                 .skip(x)
                 .filter(|(i, _)| (i % x) != n)
-                .map(|(_, v)| *v).collect::<Vec<_>>();
+                .map(|(_, v)| *v)
+                .collect::<Vec<_>>();
 
             d += (-1.0f32).powi(n as i32) * m[n] * det(&ms, x - 1);
         }
@@ -52,7 +53,7 @@ impl Matrix {
     }
 
     pub fn minor(&self, row_n: usize, col_n: usize) -> Matrix {
-        let mut matrix = Matrix::new(self.height - 1 , self.width - 1);
+        let mut matrix = Matrix::new(self.height - 1, self.width - 1);
 
         let mut nr = 0;
 
@@ -120,8 +121,6 @@ impl Matrix {
     }
 }
 
-
-
 impl ops::Index<(usize, usize)> for Matrix {
     type Output = f32;