Function: product(tan(product(gradient[0](round(gradient[0](numbers('xyy')), numbers('xyy'))), round(gradient[0](numbers('xyy')), numbers('xyy')))), product(gradient[0](round(gradient[0](numbers('xyy')), numbers('xyy'))), round(gradient[0](numbers('xyy')), numbers('xyy'))))
