Function: cos(band pass(numbers("xxx") if numbers('epe') > numbers('xyy') else numbers("yxx") if numbers("xxx") > numbers('xyy') else numbers("yxx")) if numbers("xxx") if numbers('epe') > numbers("yxx") else numbers('xyy') > minus(band pass(numbers("xxx") if numbers('xyy') > numbers("yxx") else numbers('epe') if numbers("yxx") > numbers('xyy') else numbers("xxx")), numbers('epe') if numbers('xyy') > numbers("yxx") else numbers("xxx") if numbers("yxx") > numbers('xyy') else numbers("xxx")) else numbers("yxx") if numbers("yxx") if numbers("xxx") > numbers('xyy') else numbers('epe') > numbers('xyy') else numbers("xxx"))