Function: gradient[1](minus(sum(numbers('epe'), numbers('yyx')), numbers('epe'))) if gradient[1](minus(sum(numbers('epe'), numbers('yyx')), numbers('epe'))) if numbers('epe') > sum(numbers('epe'), numbers('yyx')) else minus(sum(numbers('epe'), numbers('yyx')), numbers('epe')) > minus(sum(numbers('epe'), numbers('yyx')), numbers('epe')) else sum(numbers('epe'), numbers('yyx'))
