The console calculators I’ve seen thus far have been slanted toward the scientific, with each one striving to be exceptionally precise and capable of some very impressive math.
concalc is probably just as powerful, but I almost prefer it for its apparent simplicity.
Much as you might expect it to behave, you issue the command, follow it with the calculation, and it returns the answer, without any frills.
There are some options available to you; you can set the precision, change base, work with specific angle measurements, and so on.
But the nice thing about this is, it doesn’t seem tied up in intense calculations or mimicking a particular programming language.
Probably it can do some of those things. But from this vantage point at least, it’s nice to see something simpler. 😉