Added a method containsExactlyCont that determines if an expression tree contains a continuous variable. The method containsCont will return true if a discrete variable is present or even a relational node.
Added a method containsExactlyCont that determines if an expression tree contains a continuous variable. The method containsCont will return true if a discrete variable is present or even a relational node.

MyersResearchGroup/iBioSim,MyersResearchGroup/iBioSim,MyersResearchGroup/iBioSim