Calculator 0 0 314 301 0 0 314 301 1024 768 Calculator 10 0 0 Backspace 0 0 MC 0 0 7 0 0 8 0 0 9 0 0 / 0 0 Sqrt 0 0 Clear 0 0 Clear All 0 0 15 Qt::AlignRight|Qt::AlignTrailing|Qt::AlignVCenter true 0 0 MR 0 0 4 0 0 5 0 0 6 0 0 * 0 0 x^2 0 0 MS 0 0 1 0 0 2 0 0 3 0 0 - 0 0 1/x 0 0 M+ 0 0 0 0 0 . 0 0 +- 0 0 + 0 0 =