If I write "i=3x^2" to input line, it writes I should use i as variable. I do not know how.
Otherwise it seems to work. If I input y=3x^2, it says it is parabola, draws the graph, gives formulaes for derivations and value for global minima.
To have a look ocasionaly, it is OK, but for serious work, tablet would be better....
M92 is mainly for reading, not web browsing.
