what is xor feedforward does forward neural network have sigmoid activation functions? what is feedforward neural network can a fedforward neural network represent xor what is xor and why is it a problem can a two-way neural network be used for xor can a feedforward neural network with sigmoid activation function represent a solution to xor what kind of neural network is the xor? which neural network can solve xor why does neural networks do the work for xor xor neural network what is the solution to the xor problem? can an neural network with sigmoid activation functions represent a solution to xor? what is the best neural model for XOR can feedforward neural networks solve xor can a feedforward neural network represent a solution to the xor problem what kind of neural network is used to solve xor can a feedforward neural network be used for xor can feedforward neural networks be used for xor which neural network is best for xor