[ Matrix Calculator ] PRO

I’m a retired electrical engineer. Thirty-five years ago when I was a student at Texas A&M, we had to solve linear algebra problems by hand for our mechanical engineering, electrical engineering, physics and math classes. Sometimes the professor could only give us no more than four problems on a test because of the time it would take to invert even a 3x3 matrix — and one little sign error on the matrix inversion could totally mess up your solution. This app is simple to use and gives instant

This app really helps in my algebra class. It is worth the price! My only complaint is that there is no clear button, so when I need to type a new matrix in I either have to quit the app or go through a long process of just pressing delete over and over to delete my current matrix.