Backpropagation from scratch on Mini-Batches

You must be thinking, another Backprop from scratch blog? Well kinda yes but I thought this through and came up with something that you can use to tinker around along with easy to understand equations that you usually write down to understand the algorithm. This blog will focus on implementing the Backpropagation algorithm step-by-step on mini-batches of the dataset. There are plenty of tutorials and blogs to demonstrate the backpropagation algorithm in detail and all the logic behind calculus and algebra happening. So I'll skip that part and cut to equations in math and implementation using Python (coz why not).