Cayley transform of real numbers | x' = (x-1)/(x+1)
表达式4: "f" left parenthesis, "f" left parenthesis, "f" left parenthesis, "x" , right parenthesis , right parenthesis , right parenthesisfffx
4
表达式5: "f" left parenthesis, "f" left parenthesis, "f" left parenthesis, "f" left parenthesis, "x" , right parenthesis , right parenthesis , right parenthesis , right parenthesisffffx
5
表达式6: "x" equals left bracket, negative 1 , 0 , 1 , right bracketx=−1,0,1
6
表达式7: "y" equals left bracket, negative 1 , 0 , 1 , right brackety=−1,0,1
