ITS TOTALLY PERFECT FOR STUDENTS WHO DONT KNOW MATH. It's okay, i think u need to put the vertex, focus, directrix, and the axis of symmetry in parabola, i check all of my answers with this and find out HOW I went wrong. Has been very helpful with my math problems. It has so many great features and does so much more than any calculator iv seen.
And the disains are so Nice, otherwise is a gr8 app, Thank u for ur service, it is a very helpful app for especially students who are weak in mathematics. Good app. When taking pictures i have no problems, my friend has problems because he has a low pixels camera, the more your pixels the better the photo.