Its a starting point with wrong graphing

I would like to love this app, its easy to use and well design.

BUT : Ive got problem having accurate graph for some function. Usually the problem are with negative number, the Y(x) = ln(x) graph for example is not always showing properly. Sometimes it does, but most of the time under (0, -2) it goes straight to the left like if it was Y(x) = x - 2.

That is annoying to have the feeling that you cant trust the result of your calculator.

I hope to see an update that would addresses that issue.

Vince Burn about RK-83: Scientific Graphing Calculator, v1.2.3