diff --git a/src/function.rs b/src/function.rs
index 14a5538..6f51a35 100644
--- a/src/function.rs
+++ b/src/function.rs
@@ -182,7 +182,7 @@ impl Function {
                 (1..=self.pixel_width)
                     .map(|x| (x as f64 / resolution as f64) + min_x)
                     .map(|x| {
-                        let i_option = x_data.iter().position(|&r| r == x);
+                        let i_option = x_data.iter().position(|&r| r == x); // Optimize this later, this could be done much much better
 
                         if let Some(i) = i_option {
                             back_cache[i]