Power users loved the ability to store constants. You could set g = 9.8 (gravity) or pi = 3.14159265 and then type formulas like 2 * pi * 10 to calculate circumference. The variable memory persisted between sessions, making repetitive calculations effortless.
Often listed as a low-cost "Pro" utility (around $0.99) to provide an ad-free experience. If you'd like, I can help you: specific formulas included in the app Compare it to alternative engineering calculators Explain how to use the RF or link budget Let me know which specific module you are most interested in! Ultimate Calculator – Apps on Google Play ultimate calculator v1.0 by uniquesw