verifyLog function

void verifyLog()

Implementation

void verifyLog() {
  final x = Tensor.fromList([1, 1], [2.0]);

  final loss = x.log().sum();
  loss.backward();

  final grads = x.grad;
  bool ok = closeEnough(grads[0], 0.5);
  print("LOG: ${ok ? '✅ PASS' : '❌ FAIL (Expected 0.5, got ${grads[0]})'}");
}