> When it comes to something slightly more complex, like, for example, > raising to a power, is it obvious that the caret symbol (^) is used for > this? Maybe to C/C++ programmers but not necessarily to a general user. > Similarly, is it obvious how to use logarithms? What about entering the > value of pi? Most calculators I've seen use a carat for exponents. My high school TI-83 calculator uses it, as well as many basic cheap "one-dollar" calculators. I don't think anyone who's doing exponent expressions will not know what the carat does, though I could be wrong. We should get--as DarkWyrm will be doing--some general users' opinions on the matter. As for Pi, why not have a Pi button labeled "Pi" or the Pi symbol? Of course, this assumes the calculator app will have buttons. ;) ----------------------------------------------------------------------------- This message was sent using Conway Corporation WebMail -- www.conwaycorp.net