All excited by this new tool!
I'm teaching linear algebra, so pulled out the textbook to see how what the app could read.
First tried a system of 3 linear equations in 3 unknowns. Had trouble with network connection - but that's not unusual for my office. Changed signals but appears to be unable to read multiple lines of equations.
Next, turned to section on properties of vectors. The double vertical bars for norms appear to cause the scan to stop. Similar behavior when it got to a surd (square root symbol). App scan stops part way across the selection window before jumping back to the left-hand side of the window and reports "Error cropping image".
The app would read the matrix <<1,1>|<1,1>> but it came out as "1 1". Other times on the same matrix simply end with "Sorry, we had trouble with that one."
Most handwritten expressions int x^n = x^(n+1)/(n+1) + C" or "d/dx e^x" also end with "Error cropping image". I used the handy button to send these errors directly to the support team.
Looking forward to having more success soon!