Forward Propagation: Building Your First Neural Network in PHP

So we've built our single perceptron and taught it to make simple decisions. That's great, but here's the thing - one perceptron can only solve problems that are linearly separable. Think of trying to separate two groups of data with a straight line. If you can draw a straight line that perfectly separates the groups, a single perceptron can handle it. But what if the data is more complex than that?