Cartesian       
adjective [ before noun ]  mathematics, social science specialized uk/kɑːˈti.zi.ən/ us/kɑːrˈti.ʒən/
 (数学家)笛卡尔的;与笛卡尔的思想和理论有关的
of or connected with the ideas and theories of the mathematician René Descartes
  Cartesian doubt/dualism 笛卡尔怀疑论/笛卡尔二元论 
 Cartesian geometry/coordinates 笛卡尔几何/笛卡尔坐标系