運算式 2: "n" left parenthesis, "x" , right parenthesis equals "x" minus StartFraction, "f" left parenthesis, "x" , right parenthesis Over "f" prime left parenthesis, "x" , right parenthesis , EndFractionnx=x−fxf′x
2
"x" Subscript, 1 , Baselinex1
"n" left parenthesis, "x" Subscript, 1 , Baseline , right parenthesisnx1