check numerical grad with various epsilons
check numerical grad with various epsilons

tigerneil/chainer,hvy/chainer,cupy/cupy,sinhrks/chainer,t-abe/chainer,anaruse/chainer,ktnyt/chainer,jnishi/chainer,cemoody/chainer,chainer/chainer,hvy/chainer,t-abe/chainer,benob/chainer,Kaisuke5/chainer,wavelets/chainer,okuta/chainer,kashif/chainer,ikasumi/chainer,ktnyt/chainer,niboshi/chainer,pfnet/chainer,kuwa32/chainer,ktnyt/chainer,cupy/cupy,hidenori-t/chainer,hvy/chainer,okuta/chainer,wkentaro/chainer,laysakura/chainer,ktnyt/chainer,okuta/chainer,cupy/cupy,yanweifu/chainer,niboshi/chainer,hvy/chainer,sinhrks/chainer,chainer/chainer,ysekky/chainer,masia02/chainer,woodshop/chainer,kikusu/chainer,wkentaro/chainer,muupan/chainer,wkentaro/chainer,keisuke-umezawa/chainer,woodshop/complex-chainer,keisuke-umezawa/chainer,umitanuki/chainer,1986ks/chainer,jnishi/chainer,aonotas/chainer,benob/chainer,minhpqn/chainer,tscohen/chainer,ronekko/chainer,wkentaro/chainer,sou81821/chainer,chainer/chainer,kiyukuta/chainer,jnishi/chainer,kikusu/chainer,AlpacaDB/chainer,rezoo/chainer,chainer/chainer,delta2323/chainer,niboshi/chainer,tkerola/chainer,muupan/chainer,cupy/cupy,truongdq/chainer,elviswf/chainer,okuta/chainer,ytoyama/yans_chainer_hackathon,truongdq/chainer,jnishi/chainer,keisuke-umezawa/chainer,niboshi/chainer,keisuke-umezawa/chainer,AlpacaDB/chainer