diff --git a/src/controller/model_utils/signal_reducer.rs b/src/controller/model_utils/signal_reducer.rs
index b497899..be5604b 100644
--- a/src/controller/model_utils/signal_reducer.rs
+++ b/src/controller/model_utils/signal_reducer.rs
@@ -9,7 +9,7 @@ pub fn reactive_resistance_of_capacitor(Cm: f64, L: f64, f: f64) -> f64 {
 
 #[allow(non_snake_case)]
 pub fn full_resistance_of_capacitor(Xc: f64, Rs: f64, Rm: f64, L: f64) -> f64 {
-    (Xc.powf(2f64) + (Rs + Rm * L).powf(2f64)).sqrt()
+    (Xc.powi(2) + (Rs + Rm * L).powi(2)).sqrt()
 }
 
 #[allow(non_snake_case)]