Weights, Bias & the Weighted Sum
The core formula w·x + b.
Meet the Neuron
A neuron is the tiniest unit of a neural network. It takes a few numbers in and produces one number out. That is the whole job. 🧠
Inputs Are Just Numbers
Every neuron receives inputs as numbers, like pixel brightness or a price. Anything you can measure can become an input feeding the neuron.
All lessons in this course
- Weights, Bias & the Weighted Sum
- The Step Function & Linear Decisions
- Code a Perceptron from Scratch
- The XOR Problem: Why One Neuron Isn't Enough