about function: log_density_igaussian(z, z_var)

[leeswan]

Hi, why you calculate log density gaussian like this?

WAE-pytorch/ops.py

Line 85 in 8b5ac00

return -(z_dim/2)*math.log(2*math.pi*z_var) + z.pow(2).sum(1).div(-2*z_var)