import pandas as pd
import numpy as np

# --- Lecture du fichier CSV ---
df = pd.read_csv("signal.csv")  # contient une colonne 'Tension'

# --- Extraction des données ---
V = df["Tension"]

# --- Calcul RMS ---
V_rms = np.sqrt(np.mean(V**2))

# --- Calcul moyenne ---
V_moy = np.mean(V)

print(f"✅ V_RMS = {V_rms:.2f} V")
print(f"✅ V_moyenne = {V_moy:.2f} V")