Is Matlab code available for the following question answered earlier: Build a backpropogation neural network architecture employing a sigmoidal nonlinearity to achieve one-to-one mapping of following two functions: (i) f(x) = exp(-x) where 1 exp (-x) where 1 <= x <= 10 (ii) f(x,y) = sin(x) cos (y) where x (-2,2) and y (-2,2)