Made sure that overriding Tesseract's default equation detector works successfully. Had to modify Tesseract's code so that the EquationDetectBase class is purely virtual and added a method to the BaseApi so that I can choose what implementation of EquationDetectBase I want to use. If none is selected just used the default 2011 version that came with Tesseract. Modified my source so that it is easy to quickly switch between different equation detectors and evaluate each of them in turn.