de2bi(n) can replace dec2bin(n)=='1' if toolboxes are allowed.

@steveverrill I'd be curious to see if it can lead to a shorter solution, because in the practical case, they are. For this problem, I'm not sure if it'd be fair to change it now. Let's assume they are not to stay more general. But it'd be very nice if you provided both solutions.

You have to round it to 40.59. It's not so much of a rounding operation as it is to find a closest match.

@n̴̖̋h̷͉̃a̷̭̿h̸̡̅ẗ̵̨́d̷̰̀ĥ̷̳ Round to nearest float. The answer has to output floats from array/list B.

Lists are fine too.