Calculation of activation for H1

Let's have a look at the part of network involving just H1:

The hidden layer comes out as in the following formula:

Where:

• A: Activation function
• x_i: Input values
• w_i: Weight values

In our scenario, there are three input values, n=3:

• x₁ = I1 = Input value 1 from first neuron
• x₂ = I2= Input value 2 from second neuron
• x₃ = B1 = 1
• w1 = Weight from I1 to H1
• w2 = Weight from I2 to H1
• w3 = Weight from B1 to H1