Is the Gausian kernel weighting function in "tikhonov_regularization.ipynb" wrong?

[zyqdragon]

The Gausian kernel weighting function in "tikhonov_regularization.ipynb" should be "W=np.exp(-((dist_ij)2)/(2(theta2)))". However it is "W=np.exp(-((dist_ij)2/2(theta2)))". The "(theta**2)" is multiplied by "(dist_ij)**2" now.