Update app.py

app.py

@@ -15,7 +15,7 @@ def rbf_kernel(x1, x2, lengthscale, variance):
     dist_sqr = (x1_ - x2_) ** 2
     return variance * np.exp(-dist_sqr)
 
-fig, ax = plt.subplots()
+fig, ax = plt.subplots(figsize=(10,4))
 
 x_train = np.array([0.2, 0.5, 0.8]).reshape(-1,1)
 y_train = np.array([0.8, 0.3, 0.6]).reshape(-1,1)