- Supports direct calculation of arrays, e.g. (1,2,3)×2 = (2,4,6). - Detailed statistics and graphical analysis (including line graphs, histograms, control charts, etc.), iOS 16 and above required. - New multiple language support. - Detail optimization and fixes.

- Fixed the issue of list auto-scroll position offset. -- Recent Updates -- - Quick drafts can now be automatically saved. You can also choose whether to automatically open quick drafts when launching the app in Settings. - The switch status of the default keyboard and system keyboard will be automatically retained. - Optimize some UI. - Optimize some code that may cause sliding input to be invalid.

- Quick drafts can now be automatically saved. You can also choose whether to automatically open quick drafts when launching the app in Settings. - The switch status of the default keyboard and system keyboard will be automatically retained. - Optimize some UI. - Optimize some code that may cause sliding input to be invalid.

- Added a shortcut keypad to pop up when switching to system keyboard. You can choose to turn on or off in the keyboard settings. - Added clear button.

- Added setting option to turn off keyboard shortcuts for a cleaner interface.

- Fixed an issue where text and numbers were calculated incorrectly when mixed input in some cases. - Added sound and haptic feedback for some keys in the keyboard and shortcut toolbar.

- Added batch deletion function. First click the upper right corner to enter the selection mode, select the calculation you want to delete, and then click the trash can icon in the lower right corner. - Toggle the default division and multiplication symbols in the keyboard settings.

- Optimized delete and move cursor buttons. Long press to quickly delete, continue long press will delete everything in front of the cursor. - Fixed the issue that the interface flashed when some devices opened the function list. - Fixed keyboard clicking lag in some cases. ——Recent Update—— Big update in version 4.0. Thank you very much for your suggestions and feedback. This update is close to a rewrite. Using a new UI design, a better performance computing engine has been redesigned, and more than ten new functions and features have been added. For details, please refer to the App Store page and the in-app user guide. Some details are still being improved, and any questions in use can be reported to me at any time. After updating, there may be some differences in opening older versions of files: - Adjusted the syntax of the 'log' and 'root' functions. You can swipe a function to the left in the list of functions to see the details. - When the source reference has no value, the default value is no longer 0. - Do not open the converted JSON file with the old version of the App, it may cause data loss. In addition, due to the use of some new components, some of the previous functions were temporarily canceled in the new version due to compatibility and other issues. It mainly includes one-handed keyboard, multiple keyboard styles, background grid, etc. Please pay attention before upgrading.

Big update in version 4.0. Thank you very much for your suggestions and feedback. This update is close to a rewrite. Using a new UI design, a better performance computing engine has been redesigned, and more than ten new functions and features have been added. For details, please refer to the App Store page and the in-app user guide. Some details are still being improved, and any questions in use can be reported to me at any time. After updating, there may be some differences in opening older versions of files: 1. Adjusted the syntax of the 'log' and 'root' functions. You can swipe a function to the left in the list of functions to see the details. 2. When the source reference has no value, the default value is no longer 0. 3. Do not open the converted JSON file with the old version of the App, it may cause data loss. In addition, due to the use of some new components, some of the previous functions were temporarily canceled in the new version due to compatibility and other issues. It mainly includes one-handed keyboard, multiple keyboard styles, background grid, etc. Please pay attention before upgrading.

Version 4.0 is a big update. Many thanks to everyone who provided me with valuable suggestions and feedback. This update is a near rewrite. It uses a new UI design, a redesigned computing engine with better performance, and adds more than a dozen new features and functions. Check out the App Store page and the in-app user guide for details. Some details are still in the process of improvement, please feel free to give me feedback on any problems in use. After the update, there may be some differences in opening the old version of the file. 1. Adjusted the syntax of 'log' and 'root' functions. You can swipe a function to the left in the function list to see the details. 2. The default value is no longer 0 when the source reference has no value. 3. Please do not open the converted json file with the old version app, it may cause data loss.

- Fix the list scrolling exception after updating iOS16.1.

- Add multiple icons, which can be freely switched in the settings. - New background grid switch. - New growth to press the name in the input tip bar to locate or delete it directly. - Optimize the sorting of names in the input tip bar. - Add touch feedback of input tip bar. - Optimize the animation display of lock status. Thank you for your valuable suggestions! I will continue to optimize, and I welcome any further questions and suggestions, thank you very much!

- Block the blank shortcut input bar below the iPad keyboard. - Fixed the problem that adding and deleting locks in separate settings would not be saved. ——Latest Update—— - Newly designed keyboard settings interface, instant preview of your choices. - Added multiple keyboard layouts, you can choose to switch in the settings. - Added multiple keyboard sounds, you can choose to switch in the settings. - Added the function of adding, deleting and locking calculation formulas and editing and locking of individual calculation formulas. - Modifying the name of a calculation will now automatically update the reference name within another calculation. - Fixed the problem that in some cases, the reference could not be correctly identified, causing the program to freeze. - Several UI detail optimizations.

This time brings a number of new features and stability updates. - Newly designed keyboard settings interface, instant preview of your choices. - Added multiple keyboard layouts, you can choose to switch in the settings. - Added multiple keyboard sounds, you can choose to switch in the settings. - Added the function of adding, deleting and locking calculation formulas and editing and locking of individual calculation formulas. - Modifying the name of a calculation will now automatically update the reference name within another calculation. -Fixed the problem that in some cases, the reference could not be correctly identified, causing the program to freeze. - Several UI detail optimizations. Thanks again for your valuable suggestions! In the future, I will continue to optimize it. Any questions and suggestions are welcome, thank you very much!

- Optimize the details of dynamic effects. - Solve the problem that the keyboard cannot be displayed correctly in some scenes.

Now we have upgraded to the new instPro Calculator for free, which brings features such as reference calculation, custom formulas, iCloud synchronization and sharing, iPad split screen multi-opening, etc. to help you work and study more efficiently! In addition, because of the new version of the upgrade changes, dark mode does not support separate settings at present, the default is to follow the system changes.

- Now it supports Apple Watch, which is reduced to 12 keys for easy operation, and the calculation function is cleverly realized by sliding. I believe it can also bring you a smooth and comfortable computing experience on Apple Watch. - Improve the calculation accuracy in some scenes.

- Fixed some bugs

- Set up a link to add a rating, if you like it, give it a good rating - Settings interface optimization

- Renamed to Inst Calculator. - Fixed some bugs.

- Add more optional keyboards