32 lines
568 B
Python
32 lines
568 B
Python
import pytest
|
|
from micrograd.engine import Value
|
|
|
|
|
|
# @pytest.mark.skip(reason="complicated assertion")
|
|
def test_big_neuron():
|
|
# inputs
|
|
x1 = Value(2.0, label='x1')
|
|
x2 = Value(0.0, label='x2')
|
|
|
|
# weights
|
|
w1 = Value(-3.0, label='w1')
|
|
w2 = Value(1.0, label='w2')
|
|
|
|
# bias
|
|
b = Value(6.8813735870195432, label='b')
|
|
|
|
h1 = x1 * w1
|
|
h1.label = 'h1'
|
|
h2 = x2 * w2
|
|
h2.label = 'h2'
|
|
|
|
h = h1 + h2
|
|
h.label = 'h'
|
|
|
|
n = h + b
|
|
n.label = 'n'
|
|
y = n.tanh()
|
|
y.label = 'y'
|
|
|
|
assert pytest.approx(y.data, 0.01) == 0.7071
|