-#from enthought.mayavi import mlab
+from enthought.mayavi import mlab
import time
import numpy as np
-#import matplotlib.pyplot as plt
+import matplotlib.pyplot as plt
import surf
from steepest import steepest
from function import function_g
-#from enthought.mayavi import mlab
+from enthought.mayavi import mlab
from function import function_g, gradient_g, hessian_g
import generate
import surf
import numpy as np
-#import matplotlib.pyplot as plt
+import matplotlib.pyplot as plt
from numpy.linalg import norm, inv
# Calculate the next iteration of the Newton method
-#from enthought.mayavi import mlab
+from enthought.mayavi import mlab
from function import function_g, gradient_g, _C
import generate
import surf
import numpy as np
-#import matplotlib.pyplot as plt
+import matplotlib.pyplot as plt
import time
from numpy.linalg import norm