The engineering calculator is a useful tool that allows users to perform four fundamental operations and engineering calculations. It is easy to access, as users can simply tap the engineering calculator icon to start. Additionally, users can check their calculation history by tapping the calculation history icon. If they want to close the calculation history panel, they can do so by tapping the keypad icon. Moreover, users can reuse previously inputted formulas by tapping the formula needed from the calculation history.

In addition to the key features, the engineering calculator also offers various additional features. For instance, users can convert units easily by tapping the unit calculator button. The unit calculator can convert various types of units, such as area, length, and temperature. This feature can be particularly useful for engineers who need to work with different units of measurement.

Overall, the engineering calculator is a versatile tool that can help engineers perform calculations quickly and efficiently. Its user-friendly interface and additional features make it a valuable asset for anyone working in the field of engineering.