public void Backward(float gradientTop)
{
axpbypc.gradient = gradientTop;
ag1.backward();
ag0.backward();
mg1.backward();
mg0.backward();
}
public void Test1()
{
var a = new Unit(1.0f, 0.0f);
var b = new Unit(2.0f, 0.0f);
var c = new Unit(-3.0f, 0.0f);
var x = new Unit(-1.0f, 0.0f);
var y = new Unit(3.0f, 0.0f);
var mulg0 = new GateMul();
var mulg1 = new GateMul();
var addg0 = new GateAdd();
var addg1 = new GateAdd();
var sg0 = new GateSigmoid();
var ax = mulg0.forward(a, x);
var by = mulg1.forward(b, y);
var axpby = addg0.forward(ax, by);
var axpbypc = addg1.forward(axpby, c);
var s = sg0.forward(axpbypc);
Debug.LogFormat("forward: pass 1: {0}", s.value);
s.gradient = 1.0f;
sg0.backward();
addg1.backward();
addg0.backward();
mulg1.backward();
mulg0.backward();
var step = 0.01f;
a.value += step * a.gradient;
b.value += step * b.gradient;
c.value += step * c.gradient;
x.value += step * x.gradient;
y.value += step * y.gradient;
ax = mulg0.forward(a, x);
by = mulg1.forward(b, y);
axpby = addg0.forward(ax, by);
axpbypc = addg1.forward(axpby, c);
s = sg0.forward(axpbypc);
Debug.LogFormat("forward: pass 2: {0}", s.value);
}