Use NeuralCAD v2.31 to create 4 different neural networks. These include Backpropagation, Brain-State-in-a-Box, Counterpropagation, and Discrete Autocorrelator. Included in this new version of NeuralCAd is a much improved user interface and saving feature. Also included in this version is Help support and the ability to view the threshold values for all of the network layers. The fully registered version includes additional graphical network capability as well as two additional networks: Fuzzy Associative Memory and Boltzmann Machine. This shareware version expires after 30 days.