diff --git a/src/procedures.nim b/src/procedures.nim
index 9806d37..f50c9be 100644
--- a/src/procedures.nim
+++ b/src/procedures.nim
@@ -40,9 +40,9 @@ proc calcDot(matrix1: seq[seq[float]], matrix2: seq[seq[float]]): seq[seq[float]
 
 #? calculate cross product
 proc calcCross(vector1: array[3, float], vector2: array[3, float]): array[3, float] =
-    let i: float = vector1[1]*vector2[2] - vector1[2]*vector2[1] 
-    let j: float = vector1[2]*vector2[0] - vector1[0]*vector2[2]
-    let k: float = vector1[0]*vector2[1] - vector1[1]*vector2[0]
+    let i: float = vector1[1] * vector2[2] - vector1[2] * vector2[1] 
+    let j: float = vector1[2] * vector2[0] - vector1[0] * vector2[2]
+    let k: float = vector1[0] * vector2[1] - vector1[1] * vector2[0]
     let vector = [i, j, k]
     return vector