Function: minus(tan(numbers("xxx") if numbers('xyy') > gradient[0](numbers('xyy') if numbers("xxr") > numbers("xxx") else numbers("xxx")) else numbers("xxr") if numbers("xxx") > numbers('xyy') else numbers("xxx")), numbers('xyy') if gradient[0](numbers("xxx") if numbers("xxx") > numbers('xyy') else numbers("xxr")) > numbers("xxx") else numbers('xyy') if numbers("xxx") > numbers("xxr") else numbers("xxx"))
