Step 1 of 5
1 → 1
Meet the parts
- Node
- A circle that holds one number.
- Input node
- The left circle. Its number is the starting information.
- Connection
- A line that carries a number from one node to the next.
- Weight
- The multiplier attached to a connection.
- Output node
- The right circle. It holds the result of this tiny network.
Explain
Read the picture from left to right. The input node starts with a number, the connection multiplies it by its weight, and the output node receives the result. Moving numbers from left to right is the forward pass.
Change
Do not change anything yet. Point to the input node, connection, and output node, then click each one. Press Play forward. Next, keep Input 1 at 1 and change only the connection weight: 1, then 2, then 0. Leave bias at 0 for now.
Notice
With input 1, weight 1 sends 1; weight 2 sends 2; weight 0 sends 0. The line does not think—it performs one multiplication.