Click the green flag, then draw a number and click "scan". You will then see a result and a match percentage.
The algorithm first determines the size of the drawn object, then scans it using a 23*14 grid. The result is compared with a database and the closest match is the given result. *** The database can be extended, so letters and other symbols would also be possible. *** For best results, use a pen size corresponding to the drawn number.
