git clone https://github.com/Nugine/bpnn-rs.git
cd bpnn-rs
cargo build
cargo run

iteration:    100    error: 0.353540086202427
iteration:    200    error: 0.32357823287350707
iteration:    300    error: 0.3097202209958916
iteration:    400    error: 0.0023114803357387847
iteration:    500    error: 0.00013376838445333176
iteration:    600    error: 0.000005882603134813142
iteration:    700    error: 0.00000021730736806563241
iteration:    800    error: 0.000000007709918967308345
iteration:    900    error: 0.0000000002713938800516082
iteration:   1000    error: 0.000000000009539007440859954

input: [0, 0]
output: [0]

input: [1, 0]
output: [0.9999999518814118]

input: [0, 1]
output: [0.9999996256794317]

input: [1, 1]
output: [0.0000042431280589255715]