public void CanContructContractionOperation()
{
var(x, ypred, yactual, yerror, yloss) = new Vector(5, out Index i).Five("x", "ypred", "yactual", "yerror",
"yloss");
var(a, b) = new Scalar().Two("a", "b");
ypred.def = a * x + b;
Assert.Equal(3, ypred.ElementwiseDefinition.TensorReferences.Count);
yerror.def = SQUARE[yactual - ypred];
Assert.Equal(4, yerror.ElementwiseDefinition.TensorReferences.Count);
yloss[i, i / 2] = SUM[yerror[i]];
Assert.True(yloss.IsDefined);
TensorContraction c = yloss.ContractionDefinition.Expression;
Assert.True(c.TensorReferences.Single() == yerror);
}
public StructureOfContractionsHashed(TensorContraction freeContraction, params TensorContraction[] contractions)
{
FreeContraction = freeContraction;
Contractions = contractions;
}
