Critique

Thanks Alistair for your feedback! I tried to correct most of my mistakes. But I'm not sure whether all the grammatical mistakes are corrected or not. I changed abstract section, added some figures and etc. But, adding a pseudo code is not necessary I suppose because the problem is straightforward and in cases where we don't know the exact solution we use algorithms like gradient descent and stochastic gradient that are not relevant here. My wiki is now finished. You can take a look at it if you want.