氢计算 is a highly efficient scientific calculator that is perfectly compatible with iPad and iOS 15. It supports recording calculation processes and maintaining a history of calculations for easy reference. With 氢计算, users can perform calculations in full screen mode while simultaneously browsing other content. The app offers a simple and intuitive interface, making it easy to use and efficient.

The key features of 氢计算 include:

1. Support for basic arithmetic operations such as addition, subtraction, multiplication, and division.

2. Scientific calculation functions including factorial, exponentiation, square root, logarithm, and trigonometric functions.

3. Record calculation processes and maintain a history of calculations.

4. Copy and paste results and numbers for easy input.

5. Support for split-screen calculations on iPad.

With its user-friendly interface and comprehensive set of features, 氢计算 provides a convenient and efficient solution for all your scientific calculation needs.