ScienceCalculator is a nifty Android calculator app that is user friendly. Using this scientific calculator, you can work with complex numbers and create basic function graphs. The ScienceCalculator is fast and is easy to use. ScienceCalculator can also be individualized depending on your calculator needs, with user defined functions and variables. The calculator uses the ScienceCalculator arithmetic engine, with an open source (Apache 2) and small size (2K SLOC and 50KB binary).