AQA 7517 4.5.4.7: Range and precision
The free BugBot lessons that teach this point, a robot to try it on, and the past-paper questions that test it.
Lessons that teach it
- A7.4 Errors, range and precision Data representation
Rounding errors, absolute and relative error, range against precision, overflow and underflow, with a real sensor reading. - A7.10 Project: a secure sensor packet Data representation
Pack a distance reading into fixed point bytes with flags and a checksum, encrypt it with a one-time pad and send it by radio.
Try it on a robot
The task from A7.4 Errors, range and precision, running here. Change the program and press Run.
The specification is AQA's own document; this page says which of our lessons teach point 4.5.4.7 and is not endorsed by the board.