Eta_li

Results 2 issues of Eta_li

![image](https://user-images.githubusercontent.com/1567021/233351931-69a69cc9-0bd3-47da-a4fd-79c28d81c31d.png) Does anyone know how to fix it?

Hi, I am confused by some part of nntrain.m In nntrain.m: numbatches = m / batchsize; assert(rem(numbatches, 1) == 0, 'numbatches must be a integer'); The size of batch(variable batchsize)...