- android.permission.VIBRATE
- android.permission.INTERNET
- android.permission.ACCESS_NETWORK_STATE
- android.permission.WAKE_LOCK
- com.google.android.c2dm.permission.RECEIVE
- com.simplex.free.permission.C2D_MESSAGE
9/7/2021
* Added the ability to save solutions and choose the interface language
* The number of equations and unknowns has been increased to 20.
* Added a special keyboard for more convenient data entry
* Added ability to edit saved solutions