main function
void
main()
Implementation
void main() {
print("--- Starting Manual Autograd Verification ---");
// Core Math
verifySum();
verifyMean();
verifySigmoid();
verifyMatMul();
verifyPow();
verifyLog();
// Transformer Specifics
verifyCrossEntropySimple();
verifySoftmax();
verifyCausalMasking();
verifyLayerNorm();
verifyWeightUpdate();
print("\n--- All tests completed ---");
}