This section presents the success that participants had entering and parsing their formulae. These results were calculated based on information gathered by reviewing the video tapes of their sessions with the system.
Comparison between the error rates for all formulae and the error rates for the final formula was done, to see if there was any improvement as the user became more familiar with the system. There was no noticeable difference at all. This is probably due to the fact that the initial learning curve had been overcome during the training phase before the testing began. Any further improvement would probably be over a longer time scale, such as usage over several hours or days.