This is a nifty calculator but it is much more than that. It's a programming language disguised as a calculator. Ordinarily, when I use a calculator I want more than just a single number. I want results for a range of input values or I need to explore the behavior of a function and its sensitivity to input paramaters. Doing that sort of thing on an "ordinary calculator" is tedious.

The DME Calculator lets you explore and analyze functions and data with ease. It took me a couple of days to realize this but once you get past the small hurdle of a learning curve and understanding the programming language you have a very powerful tool at your disposal. I recommend it!