• Fix stock price chart: try "googl stock"

• Radar grid for polar function

• Play sudoku puzzle: Try "sudoku cake", "sudoku", "sudoku hard", "sudoku crazy"

• Display economic data: Try "nordic gdp", "asia population", "europe unemployment", "asia cpi", "china japan gdp per capita"

• Question answer interface

• Full screen graph editor

• Solve linear equation e.g. 6x+4=8

• Integral e.g. y=sin2x -> ∫sin2xdx = -cos2x/2

• Derivative e.g. y=sin2x -> y' = 2cos2x