rardz

Results 2 issues of rardz

It was in the class `Model` of [sketch_rnn.py](https://github.com/alexis-jacq/Pytorch-Sketch-RNN/blob/master/sketch_rnn.py): ```python def reconstruction_loss(self, mask, dx, dy, p, epoch): pdf = self.bivariate_normal_pdf(dx, dy) LS = -torch.sum(mask*torch.log(1e-5+torch.sum(self.pi * pdf, 2)))\ /float(Nmax*hp.batch_size) LP = -torch.sum(p*torch.log(self.q))/float(Nmax*hp.batch_size)...

As introduced in section 12, a quadratic bezier curve can be losslessly transformed to a cubic one by by the "1/3rd start + 2/3rd control" and "2/3rd control + 1/3rd...