AndrDron

You can handle the drone in speed, height and rotation.
Auto-back to return to the initial position.
Auto-go to fly automatically.

Program:
        Constants: pi and any int/floating number
        Variables: u v

        Operators:  + - * /   > < == &  |

        Functions:  if(exp,exp1,exp2)
        sin() cos() tan() asin() acos() atan()
        sinh() cosh() tanh() log() ln() rand()
        exp() abs() sqrt() pow(base,exponent)

        The instructions to program
        // For coments
        speed= The horizontal speed.
        speedh= The vertical speed.
        ang= The horizontal angle.
        wait= The wait interval.
        reset The reset action.
        autog The auto-go action.
        autob The auto-back action.

        For repetitive actions use do - enddo. See sample 5.