Fix: Correct dichotimie

ex5.py

@@ -8,10 +8,7 @@ def f(x) -> float:
     return np.exp(x) - 2 * np.cos(x)
 
 
-def dichotomie(a, b, epsilon=1e-6, n=0, steps=None) -> float:
-    if steps is None:
-        steps = []
-
+def dichotomie(a, b, epsilon=1e-6, n=0) -> float:
     x = (a + b) / 2
 
     delta = f(a) * f(x)