Do not round to less than 2 digits to ensure retrocompatibility

Author: zeFresk

manim/mobject/graphing/number_line.py

@@ -330,7 +330,7 @@ def get_tick_range(self) -> np.ndarray:
             x_max += 1e-6
 
         # Handle cases where min and max are both positive or both negative
-        if x_min < x_max < 0 or x_max > x_min >= 0:
+        if x_min < x_max < 0 or x_max > x_min > 0:
             tick_range = np.arange(x_min, x_max, x_step)
         else:
             start_point = 0

manim/mobject/graphing/probability.py

@@ -281,7 +281,7 @@ def __init__(
 
         elif len(y_range) == 2:
             y_step_target = max(self.values) / y_length
-            y_range = [*y_range, round(y_step_target, int(np.ceil(-np.log10(y_step_target))))]
+            y_range = [*y_range, round(y_step_target, max(2, int(np.ceil(-np.log10(y_step_target)))))]
 
         if x_length is None:
             x_length = min(len(self.values), config.frame_width - 2)