Function: band pass(minus(numbers("xyx"), numbers('yxy'))) if minus(numbers("xyx"), numbers('yxy')) if numbers('yxy') > numbers("xyx") else band pass(minus(numbers("xyx"), numbers('yxy'))) > minus(numbers("xyx"), numbers('yxy')) else sqrt(numbers("xyx") if minus(numbers("xyx"), numbers('yxy')) > numbers('yxy') else band pass(minus(numbers("xyx"), numbers('yxy'))))