関連ワード:  what does it mean when the second derivative is zero    what does it mean when the second derivative is 0    what does it mean when the second derivative is less than zero    what does it mean when the second derivative is equal to zero    what does it mean when the second derivative is greater than zero    what does it mean when the 2nd derivative is 0    what does it mean when the second derivative is less than 0    what happens when the second derivative is zero    what does it mean when the first and second derivative equals zero  
結果 : what does it mean when the second derivative is zero