Function: gradient[0](product(numbers('yyx'), numbers('epe')) if divide(numbers('epe') if product(numbers('yyx'), numbers('epe')) > numbers('rrr') else numbers('yyx'), product(numbers('yyx'), numbers('epe'))) > numbers('yyx') if product(numbers('yyx'), numbers('epe')) > numbers('epe') else numbers('rrr') else numbers('yyx'))
