Impractical with Little Use

The things this calculator does just make no sense. Inverse sin, cos, and tan dont work, and sometimes Im not even sure why the calculator does things. for example, I typed 8+x=10. x is obviously 2 right? but instead of changing it to 2, the app made it 1.44*1.44. It does this to similar problems as well. what the hell??

kbluck about MyScript Calculator - Handwriting calculator