Calculation is a free, easy-to-use scientific calculator designed for iPhone users. Developed by Paul Koomey, this utility falls under the category of Utilities & Tools, offering a range of features to meet your mathematical needs.

With Calculation, you can perform complex calculations with ease. One of its standout features is the ability to double tap and copy expressions and results, allowing for quick and convenient sharing or further calculations. The app also includes an expression history, enabling you to easily refer back to previous calculations.

For those working with trigonometry, Calculation provides trig and inverse trig functions, ensuring accurate results for your calculations. Additionally, it offers convenient shortcut buttons for common mathematical constants such as EE, π, and e.

To cater to different measurement systems, Calculation offers both degree and radian modes, allowing you to seamlessly switch between the two. Whether you're a student, professional, or simply someone who needs a reliable calculator on the go, Calculation has got you covered.

With its user-friendly interface and practical features, Calculation is a must-have utility for anyone in need of a powerful scientific calculator. Download it today and simplify your mathematical calculations.