A new inequality of Ostrowski type for twice differentiable functions by upper and lower bounds of second derivative is given,which extends the classical midpoint inequality and trapegoid inequality.
研究了一类二次可微函数,利用二阶导数的上界和下界,给出了二次可微函数的O strow sk i型不等式,同时也推广了经典的中点不等式和梯形不等式。
