It's list of features are really comprehensive and have already been listed at length in other blogs including Tutor Vista's blog post about the calculator , this blog post of the calculator or this one!
For those of you who want a very quick overview of the calculator's features,t hey include
- Graph up to 7 equations
- Output a table of values for each equation
- Trace points of each equation
- Solve Systems of Equations
- Calculate Regressions
- Perform other advanced statistical analysis like T-Test, standard deviation