PCalc for Java - Programming calculator. You can write programs for stack machine (with simplified Java like instruction set). Program consists of one or more procedure which can be nested. It is possible to access variables of top procedure (like in Pascal). You can execute program ste-by-step and inspect stack and variables in debugger
Resistor Calculator - Given the color bands on the resistor, it will tell you the resistance and tolerance rating. It is designed so that you may easily see how resistance is calculated using the color bands and hence calculate resistance on your own
Scientific Calculator is an easy to use universal scientific calculator app for touchscreen devices. It evaluates basic mathematical as well as nested scientific expressions under consideration of the algebraic convention "brackets before power before point before line calculation"