The app emulates the HP-67 RPN programmable calculator. It offers multiple active calculators, full memory visibility, and a paper tape register with various modes.
The app calculates aircraft fuel for pilots, students, and ground crew. It supports Jet Fuel and Avgas, converting between Liters, Gallons, Kilograms, and Pounds.
The app handles fraction calculations for various tasks. It performs addition, subtraction, multiplication, and division of positive and negative fractions.
Convert numbers between bases 2 to 20. Perform arithmetic operations in different bases. Display results in decimal, binary, and hexadecimal formats. Adjust number system settings for custom calculations. Export calculation history for review.
