Its a programmable calculator on steroids. You create "one liner" programs (lambdas) that do mathematical operations like you would with a programmable calcula

Its a programmable calculator on steroids. You create "one liner" programs (lambdas) that do mathematical operations like you would with a programmable calculator, including saving to memory and recalling from memory. You can then chain together the various "one liner" programs (composability) to make a complex program that performs the calculation that you need.