Developed by HP, the HP 15C Android Calculator App is an exact replica of the original layout, functions, algorithms and calculation sequences you trusted to help you through college and your career. When you find yourself without your HP 15C scientific calculator, relax – just open it on your favorite Android device. Features: -- Authentic app, developed by HP -- Award-winning HP Support -- Identical algorithms and calculation sequences as the original HP 15c Calculator -- Modeled after the limited-edition 15c Calculator -- RPN entry -- Matrix calculations -- Complex functions – real and imaginary -- SOLVE key finds the root of an equation -- Numerical integration -- Programmable – up to 448 lines