Red Phial Linear System Solver Mobile (Android)

Linear systems up to 15X15 in size can now be solved on your Android phone using Red Phial Linear System Solver.  (For larger systems up to 50X50 in size, use Red Phial Graphing Utility.)

https://redphialgraphingutility.blogspot.com/p/red-phial-linear-system-solver-android.html