verifyPow function

void verifyPow()

Implementation

void verifyPow() {
  final x = Tensor.fromList([1, 1], [3.0]);

  final loss = x.pow(2.0).sum();
  loss.backward();

  final grads = x.grad;
  bool ok = closeEnough(grads[0], 6.0);
  print("POW: ${ok ? '✅ PASS' : '❌ FAIL (Expected 6.0, got ${grads[0]})'}");
}