Function: gradient[0](numbers("xyx") if minus(numbers('xry') if numbers('epe') > numbers("xyx") else numbers('rrr'), numbers("xyx")) > log(minus(numbers('xry') if numbers('epe') > numbers("xyx") else numbers('rrr'), numbers("xyx")), numbers("xyx") if numbers('xry') > numbers('epe') else numbers('rrr')) else numbers('epe') if numbers('rrr') > numbers("xyx") else numbers('xry'))
