The accompanying Java model file, smolenltp.java, runs tetanic, theta-burst, and chemical late LTP simulations from Smolen P, Baxter DA, Byrne JH (2006). A model of the roles of essential kinases in the induction and expression of late long-term potentiation. Biophys J. 90(8):2760-75. To compile and run this file, save as smolenltp.java. Then with java compiler installed (e.g. JDK from Oracle), type "javac smolenltp.java" to compile and "java smolenltp" to run. Output will be ASCII 2-column text files which reproduces figures 3 - 6 of the paper. The PrintWriter statements at the start of the program give the names of these files, they can be altered at will.