Exact Matrix Solver app for iPhone and iPad
- solve system of linear equations using Gauss-Jordan elimination
- infinite precision rational numbers (solve anything using exact arithmetics!)
- up to 10x10 matrices supported, add/remove columns/rows on the fly
- input decimal or rational number (10.5 or 22/7 for example)
- three display modes: decimal, rational, mixed (5/4 will be displayed as 1 1/4)
- two matrix memory slots (A, B)
- AxB, BxA, A+B, A-B, B-A operate on memory slots
- 100 undo levels
- calculate inverse matrix, adjoint matrix, determinant, trace, rank
- standard Gaussian elimination supported as well
- transpose
- randomize
- find nice integral matrices whose inverse is also integral (up to 6x6 supported) (RandInv function)
- change cell font size or cell width
- one-click clear with zeroes or load with identity matrix
- easy to use
- optimized for Retina display
Pros and cons of Exact Matrix Solver app for iPhone and iPad
Exact Matrix Solver app good for
idk whats wrong with u guys. It works fine for me and being very helpful!
It works, refuse row echelon form, Inverses. The interface needs an update. But over all good app it works fine.
Some bad moments
It had everything to be an interesting app, but its unbelievably garbage, impossible to type anything coherent and see all functions. Absolutely frustrating! If it fixes these absurds, it can be something useful.
Touch calibration of the app is off by about an inch so you have to press a couple of buttons above and to the right of the button you actually want to press. A joke of an app.
I downloaded this twice, but the calibration is totally off. In order to use it you have to be up and to the left of the key you want to press. Too bad, as it looked good.
It does not completely solve systems to rref. It will leave rows as scalar multiples of each other instead of zeroing out the rows.
As in previous comment, the screen taps are all off by 1-2 inches. You have to guess where your taps will register.
As previous posters mentioned, the screen taps are way off. When I tried to compensate, it turned into a guessing a game on what button would be triggered.
I teach a Linear Algebra class to high school students where each student has an iPad. This seems like it would have been perfect for my students, it only it worked. I didnt even tell them about this app because it would have been more frustrating than helpful.
