One of the basic utilities supplied with any operating system is a calculator. These are often simple utilities that are perfectly adequate for basic use. However, the calculator supplied with Android devices is exceptionally limited offering just the basic addition, subtraction, multiplication and division functions combined with parentheses.
To provide an insight into the quality of software that is available, we have compiled a list of 17 high quality free Android calculator tools. Hopefully, there will be something of interest for anyone who wants more functionality offered by the calculator preinstalled on your Android device.
http://www.linuxlinks.com/portal/news/article.php?story=20110907163010213