Surface of revolution

運算式 3: "S" left parenthesis, 2 pi "u" , 2 pi "v" , right parenthesis

定義域 u 最小值：

less than or equal to "u" less than or equal to

定義域 u 最大值： 1

定義域 v 最小值：

less than or equal to "v" less than or equal to

定義域 v 最大值： "a"

運算式 4: "S" left parenthesis, 2 pi "u" , 2 pi "a" , right parenthesis

定義域 u 最小值：

less than or equal to "u" less than or equal to

定義域 u 最大值：

運算式 5: "S" left parenthesis, 2 pi "u" , 0 , right parenthesis

定義域 u 最小值：

less than or equal to "u" less than or equal to

定義域 u 最大值：

運算式 6: "a" equals 1

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