Exemple #1
0
 def check_definition(self):
     x = [0,1,2,3,4,-4,-3,-2,-1]
     y = [-4,-3,-2,-1,0,1,2,3,4]
     assert_array_almost_equal(fftshift(x),y)
     assert_array_almost_equal(ifftshift(y),x)
     x = [0,1,2,3,4,-5,-4,-3,-2,-1]
     y = [-5,-4,-3,-2,-1,0,1,2,3,4]
     assert_array_almost_equal(fftshift(x),y)
     assert_array_almost_equal(ifftshift(y),x)
Exemple #2
0
 def check_inverse(self):
     for n in [1,4,9,100,211]:
         x = random((n,))
         assert_array_almost_equal(ifftshift(fftshift(x)),x)