Generate sine wave with arduino via MATLAB

 Hi guys i coming up with a new question! I want to generate a pure sine wave with arduino and view it with osciloscope. The System logical chain sound like this: set up the parameters of the wave (amplitude, frequency) in binary with MATLAB And send the data to arduino via serial comunication, next i want to take the data recevived by arduino and use it as input for a DAC (mcp4725), for the end i want to see on the osciloscope the output of the DAC.
-this is not a homework.
-any idea would be great.
-i already done plotting the data send by an analog sensor And a digital one in MATLAB.